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Finding the Fourth Proportional to 15,978,767.40, 23,977,992.60 and 6,885,221.40

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Solution

The fourth proportional to 15,978,767.40, 23,977,992.60 and 6,885,221.40 is: 10,332,072.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,978,767.40 : 23,977,992.60 = 6,885,221.40 : x
  2. Step 2: Convert to fraction form
    15,978,767.40/23,977,992.60 = 6,885,221.40/x
  3. Step 3: Cross multiply
    15,978,767.40x = 23,977,992.60 × 6,885,221.40
  4. Step 4: Simplify right side
    15,978,767.40x = 165,093,787,778,561.66
  5. Step 5: Solve for x
    x = 165,093,787,778,561.66/15,978,767.40
  6. Step 6: Final answer
    x = 10,332,072.78

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