Home / 399,146,701.28-598,741,513.92-126,538,725.92

Finding the Fourth Proportional to 399,146,701.28, 598,741,513.92 and 126,538,725.92

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Solution

The fourth proportional to 399,146,701.28, 598,741,513.92 and 126,538,725.92 is: 189,814,892.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,146,701.28 : 598,741,513.92 = 126,538,725.92 : x
  2. Step 2: Convert to fraction form
    399,146,701.28/598,741,513.92 = 126,538,725.92/x
  3. Step 3: Cross multiply
    399,146,701.28x = 598,741,513.92 × 126,538,725.92
  4. Step 4: Simplify right side
    399,146,701.28x = 75,763,988,326,848,736
  5. Step 5: Solve for x
    x = 75,763,988,326,848,736/399,146,701.28
  6. Step 6: Final answer
    x = 189,814,892.83

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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.