Home / 392,509,909.42-541,667,257.50-216,304,227.16

Finding the Fourth Proportional to 392,509,909.42, 541,667,257.50 and 216,304,227.16

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Solution

The fourth proportional to 392,509,909.42, 541,667,257.50 and 216,304,227.16 is: 298,501,807.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,509,909.42 : 541,667,257.50 = 216,304,227.16 : x
  2. Step 2: Convert to fraction form
    392,509,909.42/541,667,257.50 = 216,304,227.16/x
  3. Step 3: Cross multiply
    392,509,909.42x = 541,667,257.50 × 216,304,227.16
  4. Step 4: Simplify right side
    392,509,909.42x = 117,164,917,511,414,208
  5. Step 5: Solve for x
    x = 117,164,917,511,414,208/392,509,909.42
  6. Step 6: Final answer
    x = 298,501,807.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.