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Finding the Fourth Proportional to 66,978,695.73, 100,321,565.13 and 47,488,844.39

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Solution

The fourth proportional to 66,978,695.73, 100,321,565.13 and 47,488,844.39 is: 71,129,411.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,978,695.73 : 100,321,565.13 = 47,488,844.39 : x
  2. Step 2: Convert to fraction form
    66,978,695.73/100,321,565.13 = 47,488,844.39/x
  3. Step 3: Cross multiply
    66,978,695.73x = 100,321,565.13 × 47,488,844.39
  4. Step 4: Simplify right side
    66,978,695.73x = 4,764,155,195,670,624
  5. Step 5: Solve for x
    x = 4,764,155,195,670,624/66,978,695.73
  6. Step 6: Final answer
    x = 71,129,411.28

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