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Finding the Fourth Proportional to 878,978,823.90, 1,318,678,187.85 and 265,569,063.90

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Solution

The fourth proportional to 878,978,823.90, 1,318,678,187.85 and 265,569,063.90 is: 398,417,029.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,978,823.90 : 1,318,678,187.85 = 265,569,063.90 : x
  2. Step 2: Convert to fraction form
    878,978,823.90/1,318,678,187.85 = 265,569,063.90/x
  3. Step 3: Cross multiply
    878,978,823.90x = 1,318,678,187.85 × 265,569,063.90
  4. Step 4: Simplify right side
    878,978,823.90x = 350,200,131,932,672,832
  5. Step 5: Solve for x
    x = 350,200,131,932,672,832/878,978,823.90
  6. Step 6: Final answer
    x = 398,417,029.41

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