Home / 20,342,074.33-28,079,428.85-13,468,770.73

Finding the Fourth Proportional to 20,342,074.33, 28,079,428.85 and 13,468,770.73

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Solution

The fourth proportional to 20,342,074.33, 28,079,428.85 and 13,468,770.73 is: 18,591,780.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,342,074.33 : 28,079,428.85 = 13,468,770.73 : x
  2. Step 2: Convert to fraction form
    20,342,074.33/28,079,428.85 = 13,468,770.73/x
  3. Step 3: Cross multiply
    20,342,074.33x = 28,079,428.85 × 13,468,770.73
  4. Step 4: Simplify right side
    20,342,074.33x = 378,195,389,409,997.56
  5. Step 5: Solve for x
    x = 378,195,389,409,997.56/20,342,074.33
  6. Step 6: Final answer
    x = 18,591,780.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.