Home / 218,593,934.55-328,016,873.03-82,377,076.95

Finding the Fourth Proportional to 218,593,934.55, 328,016,873.03 and 82,377,076.95

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Solution

The fourth proportional to 218,593,934.55, 328,016,873.03 and 82,377,076.95 is: 123,613,087.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,593,934.55 : 328,016,873.03 = 82,377,076.95 : x
  2. Step 2: Convert to fraction form
    218,593,934.55/328,016,873.03 = 82,377,076.95/x
  3. Step 3: Cross multiply
    218,593,934.55x = 328,016,873.03 × 82,377,076.95
  4. Step 4: Simplify right side
    218,593,934.55x = 27,021,071,190,490,688
  5. Step 5: Solve for x
    x = 27,021,071,190,490,688/218,593,934.55
  6. Step 6: Final answer
    x = 123,613,087.65

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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.