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Finding the Fourth Proportional to 408,978,034.20, 613,467,051.30 and 236,365,997.40

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Solution

The fourth proportional to 408,978,034.20, 613,467,051.30 and 236,365,997.40 is: 354,548,996.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,978,034.20 : 613,467,051.30 = 236,365,997.40 : x
  2. Step 2: Convert to fraction form
    408,978,034.20/613,467,051.30 = 236,365,997.40/x
  3. Step 3: Cross multiply
    408,978,034.20x = 613,467,051.30 × 236,365,997.40
  4. Step 4: Simplify right side
    408,978,034.20x = 145,002,751,452,561,472
  5. Step 5: Solve for x
    x = 145,002,751,452,561,472/408,978,034.20
  6. Step 6: Final answer
    x = 354,548,996.10

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