Finding the Fourth Proportional to 392,440,899.92, 588,752,432.96 and 133,658,362.17
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Solution
The fourth proportional to 392,440,899.92, 588,752,432.96 and 133,658,362.17 is: 200,518,564.53
Step by Step Solution
- Step 1: Write the proportion equation
392,440,899.92 : 588,752,432.96 = 133,658,362.17 : x - Step 2: Convert to fraction form
392,440,899.92/588,752,432.96 = 133,658,362.17/x - Step 3: Cross multiply
392,440,899.92x = 588,752,432.96 × 133,658,362.17 - Step 4: Simplify right side
392,440,899.92x = 78,691,685,912,368,048 - Step 5: Solve for x
x = 78,691,685,912,368,048/392,440,899.92 - Step 6: Final answer
x = 200,518,564.53
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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.