Home / 25,419,781.80-38,129,672.70-8,147,949.30

Finding the Fourth Proportional to 25,419,781.80, 38,129,672.70 and 8,147,949.30

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Solution

The fourth proportional to 25,419,781.80, 38,129,672.70 and 8,147,949.30 is: 12,221,923.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,419,781.80 : 38,129,672.70 = 8,147,949.30 : x
  2. Step 2: Convert to fraction form
    25,419,781.80/38,129,672.70 = 8,147,949.30/x
  3. Step 3: Cross multiply
    25,419,781.80x = 38,129,672.70 × 8,147,949.30
  4. Step 4: Simplify right side
    25,419,781.80x = 310,678,639,985,194.12
  5. Step 5: Solve for x
    x = 310,678,639,985,194.12/25,419,781.80
  6. Step 6: Final answer
    x = 12,221,923.95

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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.