Home / 80,967,760.10-121,451,640.15-73,157,545.70

Finding the Fourth Proportional to 80,967,760.10, 121,451,640.15 and 73,157,545.70

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Solution

The fourth proportional to 80,967,760.10, 121,451,640.15 and 73,157,545.70 is: 109,736,318.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,967,760.10 : 121,451,640.15 = 73,157,545.70 : x
  2. Step 2: Convert to fraction form
    80,967,760.10/121,451,640.15 = 73,157,545.70/x
  3. Step 3: Cross multiply
    80,967,760.10x = 121,451,640.15 × 73,157,545.70
  4. Step 4: Simplify right side
    80,967,760.10x = 8,885,103,914,613,581
  5. Step 5: Solve for x
    x = 8,885,103,914,613,581/80,967,760.10
  6. Step 6: Final answer
    x = 109,736,318.55

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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.