Home / 87,123,794.95-120,226,272.78-47,957,921.83

Finding the Fourth Proportional to 87,123,794.95, 120,226,272.78 and 47,957,921.83

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Solution

The fourth proportional to 87,123,794.95, 120,226,272.78 and 47,957,921.83 is: 66,179,419.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,123,794.95 : 120,226,272.78 = 47,957,921.83 : x
  2. Step 2: Convert to fraction form
    87,123,794.95/120,226,272.78 = 47,957,921.83/x
  3. Step 3: Cross multiply
    87,123,794.95x = 120,226,272.78 × 47,957,921.83
  4. Step 4: Simplify right side
    87,123,794.95x = 5,765,802,191,895,497
  5. Step 5: Solve for x
    x = 5,765,802,191,895,497/87,123,794.95
  6. Step 6: Final answer
    x = 66,179,419.70

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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.