Home / 382,478,112.30-573,717,168.45-123,719,489.40

Finding the Fourth Proportional to 382,478,112.30, 573,717,168.45 and 123,719,489.40

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Solution

The fourth proportional to 382,478,112.30, 573,717,168.45 and 123,719,489.40 is: 185,579,234.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,478,112.30 : 573,717,168.45 = 123,719,489.40 : x
  2. Step 2: Convert to fraction form
    382,478,112.30/573,717,168.45 = 123,719,489.40/x
  3. Step 3: Cross multiply
    382,478,112.30x = 573,717,168.45 × 123,719,489.40
  4. Step 4: Simplify right side
    382,478,112.30x = 70,979,995,140,647,800
  5. Step 5: Solve for x
    x = 70,979,995,140,647,800/382,478,112.30
  6. Step 6: Final answer
    x = 185,579,234.10

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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.