Home / 102,923,505.87-142,034,438.84-56,513,759.78

Finding the Fourth Proportional to 102,923,505.87, 142,034,438.84 and 56,513,759.78

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Solution

The fourth proportional to 102,923,505.87, 142,034,438.84 and 56,513,759.78 is: 77,988,988.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,923,505.87 : 142,034,438.84 = 56,513,759.78 : x
  2. Step 2: Convert to fraction form
    102,923,505.87/142,034,438.84 = 56,513,759.78/x
  3. Step 3: Cross multiply
    102,923,505.87x = 142,034,438.84 × 56,513,759.78
  4. Step 4: Simplify right side
    102,923,505.87x = 8,026,900,156,098,121
  5. Step 5: Solve for x
    x = 8,026,900,156,098,121/102,923,505.87
  6. Step 6: Final answer
    x = 77,988,988.89

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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.