Home / 418,667,080.12-628,000,578.87-111,951,221.38

Finding the Fourth Proportional to 418,667,080.12, 628,000,578.87 and 111,951,221.38

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Solution

The fourth proportional to 418,667,080.12, 628,000,578.87 and 111,951,221.38 is: 167,926,821.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,667,080.12 : 628,000,578.87 = 111,951,221.38 : x
  2. Step 2: Convert to fraction form
    418,667,080.12/628,000,578.87 = 111,951,221.38/x
  3. Step 3: Cross multiply
    418,667,080.12x = 628,000,578.87 × 111,951,221.38
  4. Step 4: Simplify right side
    418,667,080.12x = 70,305,431,829,853,704
  5. Step 5: Solve for x
    x = 70,305,431,829,853,704/418,667,080.12
  6. Step 6: Final answer
    x = 167,926,821.02

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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.