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Finding the Fourth Proportional to 354,401,007.60, 531,442,079.10 and 135,978,756.60

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Solution

The fourth proportional to 354,401,007.60, 531,442,079.10 and 135,978,756.60 is: 203,906,962.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,401,007.60 : 531,442,079.10 = 135,978,756.60 : x
  2. Step 2: Convert to fraction form
    354,401,007.60/531,442,079.10 = 135,978,756.60/x
  3. Step 3: Cross multiply
    354,401,007.60x = 531,442,079.10 × 135,978,756.60
  4. Step 4: Simplify right side
    354,401,007.60x = 72,264,833,120,936,848
  5. Step 5: Solve for x
    x = 72,264,833,120,936,848/354,401,007.60
  6. Step 6: Final answer
    x = 203,906,962.94

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