Finding the Fourth Proportional to 132,642,891.98, 198,966,400.16 and 39,279,307.92
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Solution
The fourth proportional to 132,642,891.98, 198,966,400.16 and 39,279,307.92 is: 58,919,572.55
Step by Step Solution
- Step 1: Write the proportion equation
132,642,891.98 : 198,966,400.16 = 39,279,307.92 : x - Step 2: Convert to fraction form
132,642,891.98/198,966,400.16 = 39,279,307.92/x - Step 3: Cross multiply
132,642,891.98x = 198,966,400.16 × 39,279,307.92 - Step 4: Simplify right side
132,642,891.98x = 7,815,262,497,618,577 - Step 5: Solve for x
x = 7,815,262,497,618,577/132,642,891.98 - Step 6: Final answer
x = 58,919,572.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.