Home / 12,067,520.80-18,096,469.80-3,978,245.20

Finding the Fourth Proportional to 12,067,520.80, 18,096,469.80 and 3,978,245.20

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Solution

The fourth proportional to 12,067,520.80, 18,096,469.80 and 3,978,245.20 is: 5,965,781.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,067,520.80 : 18,096,469.80 = 3,978,245.20 : x
  2. Step 2: Convert to fraction form
    12,067,520.80/18,096,469.80 = 3,978,245.20/x
  3. Step 3: Cross multiply
    12,067,520.80x = 18,096,469.80 × 3,978,245.20
  4. Step 4: Simplify right side
    12,067,520.80x = 71,992,194,118,794.97
  5. Step 5: Solve for x
    x = 71,992,194,118,794.97/12,067,520.80
  6. Step 6: Final answer
    x = 5,965,781.65

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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.