Home / 18,730,105.30-28,063,665.15-15,517,839.70

Finding the Fourth Proportional to 18,730,105.30, 28,063,665.15 and 15,517,839.70

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Solution

The fourth proportional to 18,730,105.30, 28,063,665.15 and 15,517,839.70 is: 23,250,667.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,730,105.30 : 28,063,665.15 = 15,517,839.70 : x
  2. Step 2: Convert to fraction form
    18,730,105.30/28,063,665.15 = 15,517,839.70/x
  3. Step 3: Cross multiply
    18,730,105.30x = 28,063,665.15 × 15,517,839.70
  4. Step 4: Simplify right side
    18,730,105.30x = 435,487,457,192,176.44
  5. Step 5: Solve for x
    x = 435,487,457,192,176.44/18,730,105.30
  6. Step 6: Final answer
    x = 23,250,667.85

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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.