Home / 218,422,691.64-327,635,262.18-72,855,853.38

Finding the Fourth Proportional to 218,422,691.64, 327,635,262.18 and 72,855,853.38

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Solution

The fourth proportional to 218,422,691.64, 327,635,262.18 and 72,855,853.38 is: 109,284,188.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,422,691.64 : 327,635,262.18 = 72,855,853.38 : x
  2. Step 2: Convert to fraction form
    218,422,691.64/327,635,262.18 = 72,855,853.38/x
  3. Step 3: Cross multiply
    218,422,691.64x = 327,635,262.18 × 72,855,853.38
  4. Step 4: Simplify right side
    218,422,691.64x = 23,870,146,623,503,940
  5. Step 5: Solve for x
    x = 23,870,146,623,503,940/218,422,691.64
  6. Step 6: Final answer
    x = 109,284,188.58

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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.