Home / 664,821,241.40-997,231,862.10-419,933,228.60

Finding the Fourth Proportional to 664,821,241.40, 997,231,862.10 and 419,933,228.60

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Solution

The fourth proportional to 664,821,241.40, 997,231,862.10 and 419,933,228.60 is: 629,899,842.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,821,241.40 : 997,231,862.10 = 419,933,228.60 : x
  2. Step 2: Convert to fraction form
    664,821,241.40/997,231,862.10 = 419,933,228.60/x
  3. Step 3: Cross multiply
    664,821,241.40x = 997,231,862.10 × 419,933,228.60
  4. Step 4: Simplify right side
    664,821,241.40x = 418,770,795,514,443,008
  5. Step 5: Solve for x
    x = 418,770,795,514,443,008/664,821,241.40
  6. Step 6: Final answer
    x = 629,899,842.90

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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.