Home / 321,040,691.28-443,021,327.70-181,812,449.70

Finding the Fourth Proportional to 321,040,691.28, 443,021,327.70 and 181,812,449.70

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Solution

The fourth proportional to 321,040,691.28, 443,021,327.70 and 181,812,449.70 is: 250,892,784.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,040,691.28 : 443,021,327.70 = 181,812,449.70 : x
  2. Step 2: Convert to fraction form
    321,040,691.28/443,021,327.70 = 181,812,449.70/x
  3. Step 3: Cross multiply
    321,040,691.28x = 443,021,327.70 × 181,812,449.70
  4. Step 4: Simplify right side
    321,040,691.28x = 80,546,792,858,483,456
  5. Step 5: Solve for x
    x = 80,546,792,858,483,456/321,040,691.28
  6. Step 6: Final answer
    x = 250,892,784.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.