Home / 442,728,218.40-664,092,327.60-136,019,839.20

Finding the Fourth Proportional to 442,728,218.40, 664,092,327.60 and 136,019,839.20

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Solution

The fourth proportional to 442,728,218.40, 664,092,327.60 and 136,019,839.20 is: 204,029,758.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,728,218.40 : 664,092,327.60 = 136,019,839.20 : x
  2. Step 2: Convert to fraction form
    442,728,218.40/664,092,327.60 = 136,019,839.20/x
  3. Step 3: Cross multiply
    442,728,218.40x = 664,092,327.60 × 136,019,839.20
  4. Step 4: Simplify right side
    442,728,218.40x = 90,329,731,614,105,712
  5. Step 5: Solve for x
    x = 90,329,731,614,105,712/442,728,218.40
  6. Step 6: Final answer
    x = 204,029,758.80

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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.