Home / 408,192,016.80-612,288,025.20-149,321,200.80

Finding the Fourth Proportional to 408,192,016.80, 612,288,025.20 and 149,321,200.80

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Solution

The fourth proportional to 408,192,016.80, 612,288,025.20 and 149,321,200.80 is: 223,981,801.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,192,016.80 : 612,288,025.20 = 149,321,200.80 : x
  2. Step 2: Convert to fraction form
    408,192,016.80/612,288,025.20 = 149,321,200.80/x
  3. Step 3: Cross multiply
    408,192,016.80x = 612,288,025.20 × 149,321,200.80
  4. Step 4: Simplify right side
    408,192,016.80x = 91,427,583,158,324,672
  5. Step 5: Solve for x
    x = 91,427,583,158,324,672/408,192,016.80
  6. Step 6: Final answer
    x = 223,981,801.20

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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.