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Finding the Fourth Proportional to 139,978,828.70, 209,968,243.05 and 88,897,507.10

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Solution

The fourth proportional to 139,978,828.70, 209,968,243.05 and 88,897,507.10 is: 133,346,260.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,978,828.70 : 209,968,243.05 = 88,897,507.10 : x
  2. Step 2: Convert to fraction form
    139,978,828.70/209,968,243.05 = 88,897,507.10/x
  3. Step 3: Cross multiply
    139,978,828.70x = 209,968,243.05 × 88,897,507.10
  4. Step 4: Simplify right side
    139,978,828.70x = 18,665,653,377,311,900
  5. Step 5: Solve for x
    x = 18,665,653,377,311,900/139,978,828.70
  6. Step 6: Final answer
    x = 133,346,260.65

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