Home / 28,979,819.70-43,469,729.55-15,542,891.70

Finding the Fourth Proportional to 28,979,819.70, 43,469,729.55 and 15,542,891.70

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Solution

The fourth proportional to 28,979,819.70, 43,469,729.55 and 15,542,891.70 is: 23,314,337.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,979,819.70 : 43,469,729.55 = 15,542,891.70 : x
  2. Step 2: Convert to fraction form
    28,979,819.70/43,469,729.55 = 15,542,891.70/x
  3. Step 3: Cross multiply
    28,979,819.70x = 43,469,729.55 × 15,542,891.70
  4. Step 4: Simplify right side
    28,979,819.70x = 675,645,298,623,939.62
  5. Step 5: Solve for x
    x = 675,645,298,623,939.62/28,979,819.70
  6. Step 6: Final answer
    x = 23,314,337.55

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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.