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Finding the Fourth Proportional to 78,801,843.60, 117,883,900.80 and 69,235,905.60

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Solution

The fourth proportional to 78,801,843.60, 117,883,900.80 and 69,235,905.60 is: 103,573,701.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,801,843.60 : 117,883,900.80 = 69,235,905.60 : x
  2. Step 2: Convert to fraction form
    78,801,843.60/117,883,900.80 = 69,235,905.60/x
  3. Step 3: Cross multiply
    78,801,843.60x = 117,883,900.80 × 69,235,905.60
  4. Step 4: Simplify right side
    78,801,843.60x = 8,161,798,627,548,564
  5. Step 5: Solve for x
    x = 8,161,798,627,548,564/78,801,843.60
  6. Step 6: Final answer
    x = 103,573,701.51

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