Home / 639,067,515.70-958,601,273.55-409,485,003.70

Finding the Fourth Proportional to 639,067,515.70, 958,601,273.55 and 409,485,003.70

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Solution

The fourth proportional to 639,067,515.70, 958,601,273.55 and 409,485,003.70 is: 614,227,505.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,067,515.70 : 958,601,273.55 = 409,485,003.70 : x
  2. Step 2: Convert to fraction form
    639,067,515.70/958,601,273.55 = 409,485,003.70/x
  3. Step 3: Cross multiply
    639,067,515.70x = 958,601,273.55 × 409,485,003.70
  4. Step 4: Simplify right side
    639,067,515.70x = 392,532,846,046,446,400
  5. Step 5: Solve for x
    x = 392,532,846,046,446,400/639,067,515.70
  6. Step 6: Final answer
    x = 614,227,505.55

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Similar ratio
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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.