Finding the Fourth Proportional to 12,687,391.90, 17,508,132.50 and 6,886,049.08
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Solution
The fourth proportional to 12,687,391.90, 17,508,132.50 and 6,886,049.08 is: 9,502,493.55
Step by Step Solution
- Step 1: Write the proportion equation
12,687,391.90 : 17,508,132.50 = 6,886,049.08 : x - Step 2: Convert to fraction form
12,687,391.90/17,508,132.50 = 6,886,049.08/x - Step 3: Cross multiply
12,687,391.90x = 17,508,132.50 × 6,886,049.08 - Step 4: Simplify right side
12,687,391.90x = 120,561,859,694,143.09 - Step 5: Solve for x
x = 120,561,859,694,143.09/12,687,391.90 - Step 6: Final answer
x = 9,502,493.55
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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.