Home / 81,007,997.73-111,791,319.15-43,838,268.71

Finding the Fourth Proportional to 81,007,997.73, 111,791,319.15 and 43,838,268.71

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Solution

The fourth proportional to 81,007,997.73, 111,791,319.15 and 43,838,268.71 is: 60,496,963.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,007,997.73 : 111,791,319.15 = 43,838,268.71 : x
  2. Step 2: Convert to fraction form
    81,007,997.73/111,791,319.15 = 43,838,268.71/x
  3. Step 3: Cross multiply
    81,007,997.73x = 111,791,319.15 × 43,838,268.71
  4. Step 4: Simplify right side
    81,007,997.73x = 4,900,737,887,784,112
  5. Step 5: Solve for x
    x = 4,900,737,887,784,112/81,007,997.73
  6. Step 6: Final answer
    x = 60,496,963.57

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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.