Home / 392,509,842.38-541,667,164.78-216,304,159.96

Finding the Fourth Proportional to 392,509,842.38, 541,667,164.78 and 216,304,159.96

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Solution

The fourth proportional to 392,509,842.38, 541,667,164.78 and 216,304,159.96 is: 298,501,714.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,509,842.38 : 541,667,164.78 = 216,304,159.96 : x
  2. Step 2: Convert to fraction form
    392,509,842.38/541,667,164.78 = 216,304,159.96/x
  3. Step 3: Cross multiply
    392,509,842.38x = 541,667,164.78 × 216,304,159.96
  4. Step 4: Simplify right side
    392,509,842.38x = 117,164,861,055,652,800
  5. Step 5: Solve for x
    x = 117,164,861,055,652,800/392,509,842.38
  6. Step 6: Final answer
    x = 298,501,714.87

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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.