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Finding the Fourth Proportional to 9,978,944.75, 13,770,963.55 and 5,395,266.12

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Solution

The fourth proportional to 9,978,944.75, 13,770,963.55 and 5,395,266.12 is: 7,445,477.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,978,944.75 : 13,770,963.55 = 5,395,266.12 : x
  2. Step 2: Convert to fraction form
    9,978,944.75/13,770,963.55 = 5,395,266.12/x
  3. Step 3: Cross multiply
    9,978,944.75x = 13,770,963.55 × 5,395,266.12
  4. Step 4: Simplify right side
    9,978,944.75x = 74,298,013,109,106.75
  5. Step 5: Solve for x
    x = 74,298,013,109,106.75/9,978,944.75
  6. Step 6: Final answer
    x = 7,445,477.95

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Why These Related Problems?

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