Home / 91,151,689.28-125,789,321.50-49,335,747.16

Finding the Fourth Proportional to 91,151,689.28, 125,789,321.50 and 49,335,747.16

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Solution

The fourth proportional to 91,151,689.28, 125,789,321.50 and 49,335,747.16 is: 68,083,325.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,151,689.28 : 125,789,321.50 = 49,335,747.16 : x
  2. Step 2: Convert to fraction form
    91,151,689.28/125,789,321.50 = 49,335,747.16/x
  3. Step 3: Cross multiply
    91,151,689.28x = 125,789,321.50 × 49,335,747.16
  4. Step 4: Simplify right side
    91,151,689.28x = 6,205,910,160,951,951
  5. Step 5: Solve for x
    x = 6,205,910,160,951,951/91,151,689.28
  6. Step 6: Final answer
    x = 68,083,325.83

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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.