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Finding the Fourth Proportional to 83,241,000.60, 124,861,500.90 and 81,806,109.90

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Solution

The fourth proportional to 83,241,000.60, 124,861,500.90 and 81,806,109.90 is: 122,709,164.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,241,000.60 : 124,861,500.90 = 81,806,109.90 : x
  2. Step 2: Convert to fraction form
    83,241,000.60/124,861,500.90 = 81,806,109.90/x
  3. Step 3: Cross multiply
    83,241,000.60x = 124,861,500.90 × 81,806,109.90
  4. Step 4: Simplify right side
    83,241,000.60x = 10,214,433,664,904,350
  5. Step 5: Solve for x
    x = 10,214,433,664,904,350/83,241,000.60
  6. Step 6: Final answer
    x = 122,709,164.85

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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.