Home / 252,251,243.20-378,389,306.40-131,318,891.20

Finding the Fourth Proportional to 252,251,243.20, 378,389,306.40 and 131,318,891.20

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Solution

The fourth proportional to 252,251,243.20, 378,389,306.40 and 131,318,891.20 is: 196,984,813.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,251,243.20 : 378,389,306.40 = 131,318,891.20 : x
  2. Step 2: Convert to fraction form
    252,251,243.20/378,389,306.40 = 131,318,891.20/x
  3. Step 3: Cross multiply
    252,251,243.20x = 378,389,306.40 × 131,318,891.20
  4. Step 4: Simplify right side
    252,251,243.20x = 49,689,664,158,385,064
  5. Step 5: Solve for x
    x = 49,689,664,158,385,064/252,251,243.20
  6. Step 6: Final answer
    x = 196,984,813.74

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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.