Home / 10,979,892.70-16,469,839.05-8,145,540.70

Finding the Fourth Proportional to 10,979,892.70, 16,469,839.05 and 8,145,540.70

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Solution

The fourth proportional to 10,979,892.70, 16,469,839.05 and 8,145,540.70 is: 12,218,311.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,979,892.70 : 16,469,839.05 = 8,145,540.70 : x
  2. Step 2: Convert to fraction form
    10,979,892.70/16,469,839.05 = 8,145,540.70/x
  3. Step 3: Cross multiply
    10,979,892.70x = 16,469,839.05 × 8,145,540.70
  4. Step 4: Simplify right side
    10,979,892.70x = 134,155,744,304,224.34
  5. Step 5: Solve for x
    x = 134,155,744,304,224.34/10,979,892.70
  6. Step 6: Final answer
    x = 12,218,311.05

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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.