Home / 12,067,660.80-18,096,679.80-3,978,385.20

Finding the Fourth Proportional to 12,067,660.80, 18,096,679.80 and 3,978,385.20

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Solution

The fourth proportional to 12,067,660.80, 18,096,679.80 and 3,978,385.20 is: 5,965,991.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,067,660.80 : 18,096,679.80 = 3,978,385.20 : x
  2. Step 2: Convert to fraction form
    12,067,660.80/18,096,679.80 = 3,978,385.20/x
  3. Step 3: Cross multiply
    12,067,660.80x = 18,096,679.80 × 3,978,385.20
  4. Step 4: Simplify right side
    12,067,660.80x = 71,995,563,085,458.97
  5. Step 5: Solve for x
    x = 71,995,563,085,458.97/12,067,660.80
  6. Step 6: Final answer
    x = 5,965,991.61

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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.