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Finding the Fourth Proportional to 159,490,978.20, 239,348,441.70 and 68,679,739.80

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Solution

The fourth proportional to 159,490,978.20, 239,348,441.70 and 68,679,739.80 is: 103,067,827.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,490,978.20 : 239,348,441.70 = 68,679,739.80 : x
  2. Step 2: Convert to fraction form
    159,490,978.20/239,348,441.70 = 68,679,739.80/x
  3. Step 3: Cross multiply
    159,490,978.20x = 239,348,441.70 × 68,679,739.80
  4. Step 4: Simplify right side
    159,490,978.20x = 16,438,388,697,491,468
  5. Step 5: Solve for x
    x = 16,438,388,697,491,468/159,490,978.20
  6. Step 6: Final answer
    x = 103,067,827.93

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