Home / 2,191,771,451.79-3,288,205,349.28-639,062,773.20

Finding the Fourth Proportional to 2,191,771,451.79, 3,288,205,349.28 and 639,062,773.20

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Solution

The fourth proportional to 2,191,771,451.79, 3,288,205,349.28 and 639,062,773.20 is: 958,753,992.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,191,771,451.79 : 3,288,205,349.28 = 639,062,773.20 : x
  2. Step 2: Convert to fraction form
    2,191,771,451.79/3,288,205,349.28 = 639,062,773.20/x
  3. Step 3: Cross multiply
    2,191,771,451.79x = 3,288,205,349.28 × 639,062,773.20
  4. Step 4: Simplify right side
    2,191,771,451.79x = 2,101,369,629,361,951,744
  5. Step 5: Solve for x
    x = 2,101,369,629,361,951,744/2,191,771,451.79
  6. Step 6: Final answer
    x = 958,753,992.19

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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.