Home / 426,055,601.10-639,083,401.65-219,431,340.30

Finding the Fourth Proportional to 426,055,601.10, 639,083,401.65 and 219,431,340.30

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Solution

The fourth proportional to 426,055,601.10, 639,083,401.65 and 219,431,340.30 is: 329,147,010.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,055,601.10 : 639,083,401.65 = 219,431,340.30 : x
  2. Step 2: Convert to fraction form
    426,055,601.10/639,083,401.65 = 219,431,340.30/x
  3. Step 3: Cross multiply
    426,055,601.10x = 639,083,401.65 × 219,431,340.30
  4. Step 4: Simplify right side
    426,055,601.10x = 140,234,927,387,542,736
  5. Step 5: Solve for x
    x = 140,234,927,387,542,736/426,055,601.10
  6. Step 6: Final answer
    x = 329,147,010.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.