Home / 28,313,469.60-42,438,711.60-15,543,139.20

Finding the Fourth Proportional to 28,313,469.60, 42,438,711.60 and 15,543,139.20

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Solution

The fourth proportional to 28,313,469.60, 42,438,711.60 and 15,543,139.20 is: 23,297,420.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,313,469.60 : 42,438,711.60 = 15,543,139.20 : x
  2. Step 2: Convert to fraction form
    28,313,469.60/42,438,711.60 = 15,543,139.20/x
  3. Step 3: Cross multiply
    28,313,469.60x = 42,438,711.60 × 15,543,139.20
  4. Step 4: Simplify right side
    28,313,469.60x = 659,630,801,867,454.75
  5. Step 5: Solve for x
    x = 659,630,801,867,454.75/28,313,469.60
  6. Step 6: Final answer
    x = 23,297,420.32

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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.