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Finding the Fourth Proportional to 471,503,815.20, 707,255,722.80 and 148,387,687.20

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Solution

The fourth proportional to 471,503,815.20, 707,255,722.80 and 148,387,687.20 is: 222,581,530.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,503,815.20 : 707,255,722.80 = 148,387,687.20 : x
  2. Step 2: Convert to fraction form
    471,503,815.20/707,255,722.80 = 148,387,687.20/x
  3. Step 3: Cross multiply
    471,503,815.20x = 707,255,722.80 × 148,387,687.20
  4. Step 4: Simplify right side
    471,503,815.20x = 104,948,040,965,256,288
  5. Step 5: Solve for x
    x = 104,948,040,965,256,288/471,503,815.20
  6. Step 6: Final answer
    x = 222,581,530.80

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