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Finding the Fourth Proportional to 391,978,584.90, 588,376,470.02 and 173,782,159.88

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Solution

The fourth proportional to 391,978,584.90, 588,376,470.02 and 173,782,159.88 is: 260,854,387.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,978,584.90 : 588,376,470.02 = 173,782,159.88 : x
  2. Step 2: Convert to fraction form
    391,978,584.90/588,376,470.02 = 173,782,159.88/x
  3. Step 3: Cross multiply
    391,978,584.90x = 588,376,470.02 × 173,782,159.88
  4. Step 4: Simplify right side
    391,978,584.90x = 102,249,333,778,834,864
  5. Step 5: Solve for x
    x = 102,249,333,778,834,864/391,978,584.90
  6. Step 6: Final answer
    x = 260,854,387.76

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