Home / 781,479,750.66-1,171,970,750.82-256,727,046.48

Finding the Fourth Proportional to 781,479,750.66, 1,171,970,750.82 and 256,727,046.48

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Solution

The fourth proportional to 781,479,750.66, 1,171,970,750.82 and 256,727,046.48 is: 385,008,810.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,479,750.66 : 1,171,970,750.82 = 256,727,046.48 : x
  2. Step 2: Convert to fraction form
    781,479,750.66/1,171,970,750.82 = 256,727,046.48/x
  3. Step 3: Cross multiply
    781,479,750.66x = 1,171,970,750.82 × 256,727,046.48
  4. Step 4: Simplify right side
    781,479,750.66x = 300,876,589,419,608,448
  5. Step 5: Solve for x
    x = 300,876,589,419,608,448/781,479,750.66
  6. Step 6: Final answer
    x = 385,008,810.74

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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.