Home / 426,384,058.10-639,576,087.15-419,581,613.30

Finding the Fourth Proportional to 426,384,058.10, 639,576,087.15 and 419,581,613.30

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Solution

The fourth proportional to 426,384,058.10, 639,576,087.15 and 419,581,613.30 is: 629,372,419.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,384,058.10 : 639,576,087.15 = 419,581,613.30 : x
  2. Step 2: Convert to fraction form
    426,384,058.10/639,576,087.15 = 419,581,613.30/x
  3. Step 3: Cross multiply
    426,384,058.10x = 639,576,087.15 × 419,581,613.30
  4. Step 4: Simplify right side
    426,384,058.10x = 268,354,366,474,498,400
  5. Step 5: Solve for x
    x = 268,354,366,474,498,400/426,384,058.10
  6. Step 6: Final answer
    x = 629,372,419.95

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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.