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Finding the Fourth Proportional to 332,178,978.40, 498,265,843.20 and 86,535,138.40

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Solution

The fourth proportional to 332,178,978.40, 498,265,843.20 and 86,535,138.40 is: 129,802,023.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,178,978.40 : 498,265,843.20 = 86,535,138.40 : x
  2. Step 2: Convert to fraction form
    332,178,978.40/498,265,843.20 = 86,535,138.40/x
  3. Step 3: Cross multiply
    332,178,978.40x = 498,265,843.20 × 86,535,138.40
  4. Step 4: Simplify right side
    332,178,978.40x = 43,117,503,701,304,704
  5. Step 5: Solve for x
    x = 43,117,503,701,304,704/332,178,978.40
  6. Step 6: Final answer
    x = 129,802,023.92

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Why These Related Problems?

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