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Finding the Fourth Proportional to 91,619,379.34, 137,129,978.12 and 67,351,883.02

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Solution

The fourth proportional to 91,619,379.34, 137,129,978.12 and 67,351,883.02 is: 100,807,954.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,619,379.34 : 137,129,978.12 = 67,351,883.02 : x
  2. Step 2: Convert to fraction form
    91,619,379.34/137,129,978.12 = 67,351,883.02/x
  3. Step 3: Cross multiply
    91,619,379.34x = 137,129,978.12 × 67,351,883.02
  4. Step 4: Simplify right side
    91,619,379.34x = 9,235,962,244,873,400
  5. Step 5: Solve for x
    x = 9,235,962,244,873,400/91,619,379.34
  6. Step 6: Final answer
    x = 100,807,954.73

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