Home / 18,123,820.20-27,217,223.10-9,620,764.20

Finding the Fourth Proportional to 18,123,820.20, 27,217,223.10 and 9,620,764.20

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Solution

The fourth proportional to 18,123,820.20, 27,217,223.10 and 9,620,764.20 is: 14,447,863.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,123,820.20 : 27,217,223.10 = 9,620,764.20 : x
  2. Step 2: Convert to fraction form
    18,123,820.20/27,217,223.10 = 9,620,764.20/x
  3. Step 3: Cross multiply
    18,123,820.20x = 27,217,223.10 × 9,620,764.20
  4. Step 4: Simplify right side
    18,123,820.20x = 261,850,485,623,893
  5. Step 5: Solve for x
    x = 261,850,485,623,893/18,123,820.20
  6. Step 6: Final answer
    x = 14,447,863.79

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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.