Home / 18,781,679.70-28,172,519.55-14,524,902.90

Finding the Fourth Proportional to 18,781,679.70, 28,172,519.55 and 14,524,902.90

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Solution

The fourth proportional to 18,781,679.70, 28,172,519.55 and 14,524,902.90 is: 21,787,354.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,781,679.70 : 28,172,519.55 = 14,524,902.90 : x
  2. Step 2: Convert to fraction form
    18,781,679.70/28,172,519.55 = 14,524,902.90/x
  3. Step 3: Cross multiply
    18,781,679.70x = 28,172,519.55 × 14,524,902.90
  4. Step 4: Simplify right side
    18,781,679.70x = 409,203,110,912,101.69
  5. Step 5: Solve for x
    x = 409,203,110,912,101.69/18,781,679.70
  6. Step 6: Final answer
    x = 21,787,354.35

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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.