Finding the Fourth Proportional to 71,423,338.20, 98,565,034.14 and 39,634,160.28
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Solution
The fourth proportional to 71,423,338.20, 98,565,034.14 and 39,634,160.28 is: 54,695,600.34
Step by Step Solution
- Step 1: Write the proportion equation
71,423,338.20 : 98,565,034.14 = 39,634,160.28 : x - Step 2: Convert to fraction form
71,423,338.20/98,565,034.14 = 39,634,160.28/x - Step 3: Cross multiply
71,423,338.20x = 98,565,034.14 × 39,634,160.28 - Step 4: Simplify right side
71,423,338.20x = 3,906,542,361,108,432 - Step 5: Solve for x
x = 3,906,542,361,108,432/71,423,338.20 - Step 6: Final answer
x = 54,695,600.34
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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.