Home / 431,078,089.20-647,025,932.70-266,818,976.52

Finding the Fourth Proportional to 431,078,089.20, 647,025,932.70 and 266,818,976.52

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Solution

The fourth proportional to 431,078,089.20, 647,025,932.70 and 266,818,976.52 is: 400,481,493.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,078,089.20 : 647,025,932.70 = 266,818,976.52 : x
  2. Step 2: Convert to fraction form
    431,078,089.20/647,025,932.70 = 266,818,976.52/x
  3. Step 3: Cross multiply
    431,078,089.20x = 647,025,932.70 × 266,818,976.52
  4. Step 4: Simplify right side
    431,078,089.20x = 172,638,797,144,912,416
  5. Step 5: Solve for x
    x = 172,638,797,144,912,416/431,078,089.20
  6. Step 6: Final answer
    x = 400,481,493.89

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