Home / 252,661,786.20-378,992,679.30-154,451,489.40

Finding the Fourth Proportional to 252,661,786.20, 378,992,679.30 and 154,451,489.40

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Solution

The fourth proportional to 252,661,786.20, 378,992,679.30 and 154,451,489.40 is: 231,677,234.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,661,786.20 : 378,992,679.30 = 154,451,489.40 : x
  2. Step 2: Convert to fraction form
    252,661,786.20/378,992,679.30 = 154,451,489.40/x
  3. Step 3: Cross multiply
    252,661,786.20x = 378,992,679.30 × 154,451,489.40
  4. Step 4: Simplify right side
    252,661,786.20x = 58,535,983,789,581,552
  5. Step 5: Solve for x
    x = 58,535,983,789,581,552/252,661,786.20
  6. Step 6: Final answer
    x = 231,677,234.10

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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.