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Finding the Fourth Proportional to 139,969,200.70, 209,953,801.05 and 42,939,883.90

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Solution

The fourth proportional to 139,969,200.70, 209,953,801.05 and 42,939,883.90 is: 64,409,825.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,969,200.70 : 209,953,801.05 = 42,939,883.90 : x
  2. Step 2: Convert to fraction form
    139,969,200.70/209,953,801.05 = 42,939,883.90/x
  3. Step 3: Cross multiply
    139,969,200.70x = 209,953,801.05 × 42,939,883.90
  4. Step 4: Simplify right side
    139,969,200.70x = 9,015,391,841,450,698
  5. Step 5: Solve for x
    x = 9,015,391,841,450,698/139,969,200.70
  6. Step 6: Final answer
    x = 64,409,825.85

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