Home / 639,741,257.28-959,647,781.88-179,643,553.92

Finding the Fourth Proportional to 639,741,257.28, 959,647,781.88 and 179,643,553.92

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Solution

The fourth proportional to 639,741,257.28, 959,647,781.88 and 179,643,553.92 is: 269,475,410.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,741,257.28 : 959,647,781.88 = 179,643,553.92 : x
  2. Step 2: Convert to fraction form
    639,741,257.28/959,647,781.88 = 179,643,553.92/x
  3. Step 3: Cross multiply
    639,741,257.28x = 959,647,781.88 × 179,643,553.92
  4. Step 4: Simplify right side
    639,741,257.28x = 172,394,538,048,368,160
  5. Step 5: Solve for x
    x = 172,394,538,048,368,160/639,741,257.28
  6. Step 6: Final answer
    x = 269,475,410.70

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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.