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Finding the Fourth Proportional to 373,455,928.20, 559,805,978.70 and 220,023,006.60

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Solution

The fourth proportional to 373,455,928.20, 559,805,978.70 and 220,023,006.60 is: 329,811,860.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,455,928.20 : 559,805,978.70 = 220,023,006.60 : x
  2. Step 2: Convert to fraction form
    373,455,928.20/559,805,978.70 = 220,023,006.60/x
  3. Step 3: Cross multiply
    373,455,928.20x = 559,805,978.70 × 220,023,006.60
  4. Step 4: Simplify right side
    373,455,928.20x = 123,170,194,546,229,568
  5. Step 5: Solve for x
    x = 123,170,194,546,229,568/373,455,928.20
  6. Step 6: Final answer
    x = 329,811,860.64

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