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Finding the Fourth Proportional to 318,766,472.88, 478,102,120.20 and 88,711,568.88

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Solution

The fourth proportional to 318,766,472.88, 478,102,120.20 and 88,711,568.88 is: 133,054,109.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,766,472.88 : 478,102,120.20 = 88,711,568.88 : x
  2. Step 2: Convert to fraction form
    318,766,472.88/478,102,120.20 = 88,711,568.88/x
  3. Step 3: Cross multiply
    318,766,472.88x = 478,102,120.20 × 88,711,568.88
  4. Step 4: Simplify right side
    318,766,472.88x = 42,413,189,167,796,336
  5. Step 5: Solve for x
    x = 42,413,189,167,796,336/318,766,472.88
  6. Step 6: Final answer
    x = 133,054,109.44

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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.