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Finding the Fourth Proportional to 69,258,705.20, 103,888,057.80 and 18,145,890.80

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Solution

The fourth proportional to 69,258,705.20, 103,888,057.80 and 18,145,890.80 is: 27,218,836.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,258,705.20 : 103,888,057.80 = 18,145,890.80 : x
  2. Step 2: Convert to fraction form
    69,258,705.20/103,888,057.80 = 18,145,890.80/x
  3. Step 3: Cross multiply
    69,258,705.20x = 103,888,057.80 × 18,145,890.80
  4. Step 4: Simplify right side
    69,258,705.20x = 1,885,141,352,262,888.25
  5. Step 5: Solve for x
    x = 1,885,141,352,262,888.25/69,258,705.20
  6. Step 6: Final answer
    x = 27,218,836.20

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