Home / 20,469,829.08-28,248,500.70-11,177,463.72

Finding the Fourth Proportional to 20,469,829.08, 28,248,500.70 and 11,177,463.72

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Solution

The fourth proportional to 20,469,829.08, 28,248,500.70 and 11,177,463.72 is: 15,424,974.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,469,829.08 : 28,248,500.70 = 11,177,463.72 : x
  2. Step 2: Convert to fraction form
    20,469,829.08/28,248,500.70 = 11,177,463.72/x
  3. Step 3: Cross multiply
    20,469,829.08x = 28,248,500.70 × 11,177,463.72
  4. Step 4: Simplify right side
    20,469,829.08x = 315,746,591,718,644.62
  5. Step 5: Solve for x
    x = 315,746,591,718,644.62/20,469,829.08
  6. Step 6: Final answer
    x = 15,424,974.51

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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.