Home / 87,309,667.56-120,487,460.76-47,617,294.20

Finding the Fourth Proportional to 87,309,667.56, 120,487,460.76 and 47,617,294.20

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Solution

The fourth proportional to 87,309,667.56, 120,487,460.76 and 47,617,294.20 is: 65,711,931.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,309,667.56 : 120,487,460.76 = 47,617,294.20 : x
  2. Step 2: Convert to fraction form
    87,309,667.56/120,487,460.76 = 47,617,294.20/x
  3. Step 3: Cross multiply
    87,309,667.56x = 120,487,460.76 × 47,617,294.20
  4. Step 4: Simplify right side
    87,309,667.56x = 5,737,286,866,419,876
  5. Step 5: Solve for x
    x = 5,737,286,866,419,876/87,309,667.56
  6. Step 6: Final answer
    x = 65,711,931.18

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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.