Finding the Fourth Proportional to 12,826,165.22, 17,700,394.38 and 7,319,430.44
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Solution
The fourth proportional to 12,826,165.22, 17,700,394.38 and 7,319,430.44 is: 10,100,977.43
Step by Step Solution
- Step 1: Write the proportion equation
12,826,165.22 : 17,700,394.38 = 7,319,430.44 : x - Step 2: Convert to fraction form
12,826,165.22/17,700,394.38 = 7,319,430.44/x - Step 3: Cross multiply
12,826,165.22x = 17,700,394.38 × 7,319,430.44 - Step 4: Simplify right side
12,826,165.22x = 129,556,805,424,976.92 - Step 5: Solve for x
x = 129,556,805,424,976.92/12,826,165.22 - Step 6: Final answer
x = 10,100,977.43
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.