Home / 218,593,942.30-328,016,884.65-82,377,084.70

Finding the Fourth Proportional to 218,593,942.30, 328,016,884.65 and 82,377,084.70

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Solution

The fourth proportional to 218,593,942.30, 328,016,884.65 and 82,377,084.70 is: 123,613,099.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,593,942.30 : 328,016,884.65 = 82,377,084.70 : x
  2. Step 2: Convert to fraction form
    218,593,942.30/328,016,884.65 = 82,377,084.70/x
  3. Step 3: Cross multiply
    218,593,942.30x = 328,016,884.65 × 82,377,084.70
  4. Step 4: Simplify right side
    218,593,942.30x = 27,021,074,689,843,180
  5. Step 5: Solve for x
    x = 27,021,074,689,843,180/218,593,942.30
  6. Step 6: Final answer
    x = 123,613,099.27

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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.