Home / 252,653,331.92-379,016,149.40-77,791,161.12

Finding the Fourth Proportional to 252,653,331.92, 379,016,149.40 and 77,791,161.12

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Solution

The fourth proportional to 252,653,331.92, 379,016,149.40 and 77,791,161.12 is: 116,697,872.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,653,331.92 : 379,016,149.40 = 77,791,161.12 : x
  2. Step 2: Convert to fraction form
    252,653,331.92/379,016,149.40 = 77,791,161.12/x
  3. Step 3: Cross multiply
    252,653,331.92x = 379,016,149.40 × 77,791,161.12
  4. Step 4: Simplify right side
    252,653,331.92x = 29,484,106,345,057,392
  5. Step 5: Solve for x
    x = 29,484,106,345,057,392/252,653,331.92
  6. Step 6: Final answer
    x = 116,697,872.62

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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.