Home / 252,661,805.70-378,992,708.55-154,451,508.90

Finding the Fourth Proportional to 252,661,805.70, 378,992,708.55 and 154,451,508.90

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Solution

The fourth proportional to 252,661,805.70, 378,992,708.55 and 154,451,508.90 is: 231,677,263.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,661,805.70 : 378,992,708.55 = 154,451,508.90 : x
  2. Step 2: Convert to fraction form
    252,661,805.70/378,992,708.55 = 154,451,508.90/x
  3. Step 3: Cross multiply
    252,661,805.70x = 378,992,708.55 × 154,451,508.90
  4. Step 4: Simplify right side
    252,661,805.70x = 58,535,995,697,645,432
  5. Step 5: Solve for x
    x = 58,535,995,697,645,432/252,661,805.70
  6. Step 6: Final answer
    x = 231,677,263.35

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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.