Sum every third column in a row

[Carl B]

Is there a nifty formula that would allow me to sum every third cell in a range?

 

[jasonb75]

Having attempted to make sense of this thread, is this anywhere close?

Sheet8


<TABLE style="BACKGROUND-COLOR: #ffffff; PADDING-LEFT: 2pt; PADDING-RIGHT: 2pt; FONT-FAMILY: Calibri,Arial; FONT-SIZE: 11pt" border=1 cellSpacing=0 cellPadding=0><COLGROUP><COL style="WIDTH: 30px; FONT-WEIGHT: bold"><COL style="WIDTH: 77px"><COL style="WIDTH: 48px"><COL style="WIDTH: 51px"><COL style="WIDTH: 43px"><COL style="WIDTH: 38px"></COLGROUP><TBODY><TR style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt; FONT-WEIGHT: bold"><TD> </TD><TD>A</TD><TD>B</TD><TD>C</TD><TD>D</TD><TD>E</TD></TR><TR style="HEIGHT: 18px"><TD style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt">1</TD><TD>Field 1</TD><TD>Field 2</TD><TD>1st 4</TD><TD>7th</TD><TD>Total</TD></TR><TR style="HEIGHT: 18px"><TD style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt">2</TD><TD style="TEXT-ALIGN: right">9795114609</TD><TD style="TEXT-ALIGN: right">100</TD><TD style="TEXT-ALIGN: right">9795</TD><TD style="TEXT-ALIGN: right">4</TD><TD style="TEXT-ALIGN: right">600</TD></TR><TR style="HEIGHT: 18px"><TD style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt">3</TD><TD style="TEXT-ALIGN: right">9795314509</TD><TD style="TEXT-ALIGN: right">500</TD><TD style="TEXT-ALIGN: right">9795</TD><TD style="TEXT-ALIGN: right">4</TD><TD style="TEXT-ALIGN: right">600</TD></TR><TR style="HEIGHT: 18px"><TD style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt">4</TD><TD style="TEXT-ALIGN: right">8100254635</TD><TD style="TEXT-ALIGN: right">200</TD><TD style="TEXT-ALIGN: right">8100</TD><TD style="TEXT-ALIGN: right">4</TD><TD style="TEXT-ALIGN: right">275</TD></TR><TR style="HEIGHT: 18px"><TD style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt">5</TD><TD style="TEXT-ALIGN: right">8400965280</TD><TD style="TEXT-ALIGN: right">1000</TD><TD style="TEXT-ALIGN: right">8400</TD><TD style="TEXT-ALIGN: right">5</TD><TD style="TEXT-ALIGN: right">1000</TD></TR><TR style="HEIGHT: 18px"><TD style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt">6</TD><TD style="TEXT-ALIGN: right">8100404341</TD><TD style="TEXT-ALIGN: right">75</TD><TD style="TEXT-ALIGN: right">8100</TD><TD style="TEXT-ALIGN: right">4</TD><TD style="TEXT-ALIGN: right">275</TD></TR></TBODY></TABLE>


<TABLE style="BORDER-BOTTOM-STYLE: groove; BORDER-BOTTOM-COLOR: #00ff00; BORDER-RIGHT-STYLE: groove; BACKGROUND-COLOR: #fffcf9; BORDER-TOP-COLOR: #00ff00; FONT-FAMILY: Arial; BORDER-TOP-STYLE: groove; COLOR: #000000; BORDER-RIGHT-COLOR: #00ff00; FONT-SIZE: 10pt; BORDER-LEFT-STYLE: groove; BORDER-LEFT-COLOR: #00ff00"><TBODY><TR><TD>Spreadsheet Formulas</TD></TR><TR><TD><TABLE style="FONT-FAMILY: Arial; FONT-SIZE: 9pt" border=1 cellSpacing=0 cellPadding=2><TBODY><TR style="BACKGROUND-COLOR: #cacaca; FONT-SIZE: 10pt"><TD>Cell</TD><TD>Formula</TD></TR><TR><TD>C2</TD><TD>=VALUE(LEFT(A2,4))</TD></TR><TR><TD>D2</TD><TD>=VALUE(MID(A2,7,1))</TD></TR><TR><TD>E2</TD><TD>=SUMPRODUCT(($C$2:$C$6=C2)*($D$2:$D$6=D2)*$B$2:$B$6)</TD></TR><TR><TD>C3</TD><TD>=VALUE(LEFT(A3,4))</TD></TR><TR><TD>D3</TD><TD>=VALUE(MID(A3,7,1))</TD></TR><TR><TD>E3</TD><TD>=SUMPRODUCT(($C$2:$C$6=C3)*($D$2:$D$6=D3)*$B$2:$B$6)</TD></TR><TR><TD>C4</TD><TD>=VALUE(LEFT(A4,4))</TD></TR><TR><TD>D4</TD><TD>=VALUE(MID(A4,7,1))</TD></TR><TR><TD>E4</TD><TD>=SUMPRODUCT(($C$2:$C$6=C4)*($D$2:$D$6=D4)*$B$2:$B$6)</TD></TR><TR><TD>C5</TD><TD>=VALUE(LEFT(A5,4))</TD></TR><TR><TD>D5</TD><TD>=VALUE(MID(A5,7,1))</TD></TR><TR><TD>E5</TD><TD>=SUMPRODUCT(($C$2:$C$6=C5)*($D$2:$D$6=D5)*$B$2:$B$6)</TD></TR><TR><TD>C6</TD><TD>=VALUE(LEFT(A6,4))</TD></TR><TR><TD>D6</TD><TD>=VALUE(MID(A6,7,1))</TD></TR><TR><TD>E6</TD><TD>=SUMPRODUCT(($C$2:$C$6=C6)*($D$2:$D$6=D6)*$B$2:$B$6)</TD></TR></TBODY></TABLE></TD></TR></TBODY></TABLE>


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Maybe thats already been tried, I lost track long before reaching the last reply!

 

[Myproblem]

that is it,it solved my problem
thx guys