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Finding the Fourth Proportional to 82,978,601.10, 124,467,901.65 and 54,313,154.70

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Solution

The fourth proportional to 82,978,601.10, 124,467,901.65 and 54,313,154.70 is: 81,469,732.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,978,601.10 : 124,467,901.65 = 54,313,154.70 : x
  2. Step 2: Convert to fraction form
    82,978,601.10/124,467,901.65 = 54,313,154.70/x
  3. Step 3: Cross multiply
    82,978,601.10x = 124,467,901.65 × 54,313,154.70
  4. Step 4: Simplify right side
    82,978,601.10x = 6,760,244,397,500,836
  5. Step 5: Solve for x
    x = 6,760,244,397,500,836/82,978,601.10
  6. Step 6: Final answer
    x = 81,469,732.05

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