Home / 382,478,112.80-573,717,169.20-123,719,489.90

Finding the Fourth Proportional to 382,478,112.80, 573,717,169.20 and 123,719,489.90

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Solution

The fourth proportional to 382,478,112.80, 573,717,169.20 and 123,719,489.90 is: 185,579,234.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,478,112.80 : 573,717,169.20 = 123,719,489.90 : x
  2. Step 2: Convert to fraction form
    382,478,112.80/573,717,169.20 = 123,719,489.90/x
  3. Step 3: Cross multiply
    382,478,112.80x = 573,717,169.20 × 123,719,489.90
  4. Step 4: Simplify right side
    382,478,112.80x = 70,979,995,520,296,000
  5. Step 5: Solve for x
    x = 70,979,995,520,296,000/382,478,112.80
  6. Step 6: Final answer
    x = 185,579,234.85

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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.