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Finding the Fourth Proportional to 11,978,820.98, 17,971,262.49 and 3,342,920.39

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Solution

The fourth proportional to 11,978,820.98, 17,971,262.49 and 3,342,920.39 is: 5,015,226.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,978,820.98 : 17,971,262.49 = 3,342,920.39 : x
  2. Step 2: Convert to fraction form
    11,978,820.98/17,971,262.49 = 3,342,920.39/x
  3. Step 3: Cross multiply
    11,978,820.98x = 17,971,262.49 × 3,342,920.39
  4. Step 4: Simplify right side
    11,978,820.98x = 60,076,499,811,863.16
  5. Step 5: Solve for x
    x = 60,076,499,811,863.16/11,978,820.98
  6. Step 6: Final answer
    x = 5,015,226.45

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