Home / 18,191,753.70-27,287,630.55-8,625,815.70

Finding the Fourth Proportional to 18,191,753.70, 27,287,630.55 and 8,625,815.70

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Solution

The fourth proportional to 18,191,753.70, 27,287,630.55 and 8,625,815.70 is: 12,938,723.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,191,753.70 : 27,287,630.55 = 8,625,815.70 : x
  2. Step 2: Convert to fraction form
    18,191,753.70/27,287,630.55 = 8,625,815.70/x
  3. Step 3: Cross multiply
    18,191,753.70x = 27,287,630.55 × 8,625,815.70
  4. Step 4: Simplify right side
    18,191,753.70x = 235,378,072,013,989.62
  5. Step 5: Solve for x
    x = 235,378,072,013,989.62/18,191,753.70
  6. Step 6: Final answer
    x = 12,938,723.55

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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.