Home / 327,334,128.81-491,065,874.99-120,074,463.86

Finding the Fourth Proportional to 327,334,128.81, 491,065,874.99 and 120,074,463.86

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Solution

The fourth proportional to 327,334,128.81, 491,065,874.99 and 120,074,463.86 is: 180,135,422.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,334,128.81 : 491,065,874.99 = 120,074,463.86 : x
  2. Step 2: Convert to fraction form
    327,334,128.81/491,065,874.99 = 120,074,463.86/x
  3. Step 3: Cross multiply
    327,334,128.81x = 491,065,874.99 × 120,074,463.86
  4. Step 4: Simplify right side
    327,334,128.81x = 58,964,471,659,366,032
  5. Step 5: Solve for x
    x = 58,964,471,659,366,032/327,334,128.81
  6. Step 6: Final answer
    x = 180,135,422.71

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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.