Home / 18,259,359-27,378,778.04-12,508,576.88

Finding the Fourth Proportional to 18,259,359, 27,378,778.04 and 12,508,576.88

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Solution

The fourth proportional to 18,259,359, 27,378,778.04 and 12,508,576.88 is: 18,755,836.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,259,359 : 27,378,778.04 = 12,508,576.88 : x
  2. Step 2: Convert to fraction form
    18,259,359/27,378,778.04 = 12,508,576.88/x
  3. Step 3: Cross multiply
    18,259,359x = 27,378,778.04 × 12,508,576.88
  4. Step 4: Simplify right side
    18,259,359x = 342,469,549,993,795.75
  5. Step 5: Solve for x
    x = 342,469,549,993,795.75/18,259,359
  6. Step 6: Final answer
    x = 18,755,836.39

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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.