Home / 557,121,162.24-768,016,906.56-389,336,500.80

Finding the Fourth Proportional to 557,121,162.24, 768,016,906.56 and 389,336,500.80

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Solution

The fourth proportional to 557,121,162.24, 768,016,906.56 and 389,336,500.80 is: 536,718,105.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,121,162.24 : 768,016,906.56 = 389,336,500.80 : x
  2. Step 2: Convert to fraction form
    557,121,162.24/768,016,906.56 = 389,336,500.80/x
  3. Step 3: Cross multiply
    557,121,162.24x = 768,016,906.56 × 389,336,500.80
  4. Step 4: Simplify right side
    557,121,162.24x = 299,017,014,955,310,976
  5. Step 5: Solve for x
    x = 299,017,014,955,310,976/557,121,162.24
  6. Step 6: Final answer
    x = 536,718,105.90

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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.