Home / 18,979,230.60-28,468,845.90-18,235,213.20

Finding the Fourth Proportional to 18,979,230.60, 28,468,845.90 and 18,235,213.20

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Solution

The fourth proportional to 18,979,230.60, 28,468,845.90 and 18,235,213.20 is: 27,352,819.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,979,230.60 : 28,468,845.90 = 18,235,213.20 : x
  2. Step 2: Convert to fraction form
    18,979,230.60/28,468,845.90 = 18,235,213.20/x
  3. Step 3: Cross multiply
    18,979,230.60x = 28,468,845.90 × 18,235,213.20
  4. Step 4: Simplify right side
    18,979,230.60x = 519,135,474,544,445.81
  5. Step 5: Solve for x
    x = 519,135,474,544,445.81/18,979,230.60
  6. Step 6: Final answer
    x = 27,352,819.80

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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.