Home / 87,755,060.20-131,632,590.30-42,405,428.20

Finding the Fourth Proportional to 87,755,060.20, 131,632,590.30 and 42,405,428.20

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Solution

The fourth proportional to 87,755,060.20, 131,632,590.30 and 42,405,428.20 is: 63,608,142.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,755,060.20 : 131,632,590.30 = 42,405,428.20 : x
  2. Step 2: Convert to fraction form
    87,755,060.20/131,632,590.30 = 42,405,428.20/x
  3. Step 3: Cross multiply
    87,755,060.20x = 131,632,590.30 × 42,405,428.20
  4. Step 4: Simplify right side
    87,755,060.20x = 5,581,936,356,746,667
  5. Step 5: Solve for x
    x = 5,581,936,356,746,667/87,755,060.20
  6. Step 6: Final answer
    x = 63,608,142.30

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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.