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Finding the Fourth Proportional to 139,968,185.80, 209,952,278.70 and 88,312,120.60

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Solution

The fourth proportional to 139,968,185.80, 209,952,278.70 and 88,312,120.60 is: 132,468,180.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,185.80 : 209,952,278.70 = 88,312,120.60 : x
  2. Step 2: Convert to fraction form
    139,968,185.80/209,952,278.70 = 88,312,120.60/x
  3. Step 3: Cross multiply
    139,968,185.80x = 209,952,278.70 × 88,312,120.60
  4. Step 4: Simplify right side
    139,968,185.80x = 18,541,330,956,799,208
  5. Step 5: Solve for x
    x = 18,541,330,956,799,208/139,968,185.80
  6. Step 6: Final answer
    x = 132,468,180.90

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