Home / 279,907,016.72-386,348,520.90-162,470,180.96

Finding the Fourth Proportional to 279,907,016.72, 386,348,520.90 and 162,470,180.96

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Solution

The fourth proportional to 279,907,016.72, 386,348,520.90 and 162,470,180.96 is: 224,253,449.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,907,016.72 : 386,348,520.90 = 162,470,180.96 : x
  2. Step 2: Convert to fraction form
    279,907,016.72/386,348,520.90 = 162,470,180.96/x
  3. Step 3: Cross multiply
    279,907,016.72x = 386,348,520.90 × 162,470,180.96
  4. Step 4: Simplify right side
    279,907,016.72x = 62,770,114,104,251,344
  5. Step 5: Solve for x
    x = 62,770,114,104,251,344/279,907,016.72
  6. Step 6: Final answer
    x = 224,253,449.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.