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Finding the Fourth Proportional to 256,597,978.39, 384,935,377.75 and 92,874,041.40

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Solution

The fourth proportional to 256,597,978.39, 384,935,377.75 and 92,874,041.40 is: 139,324,964.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,597,978.39 : 384,935,377.75 = 92,874,041.40 : x
  2. Step 2: Convert to fraction form
    256,597,978.39/384,935,377.75 = 92,874,041.40/x
  3. Step 3: Cross multiply
    256,597,978.39x = 384,935,377.75 × 92,874,041.40
  4. Step 4: Simplify right side
    256,597,978.39x = 35,750,504,210,789,764
  5. Step 5: Solve for x
    x = 35,750,504,210,789,764/256,597,978.39
  6. Step 6: Final answer
    x = 139,324,964.43

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