Home / 523,261,456.92-721,873,914.66-311,449,520.02

Finding the Fourth Proportional to 523,261,456.92, 721,873,914.66 and 311,449,520.02

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Solution

The fourth proportional to 523,261,456.92, 721,873,914.66 and 311,449,520.02 is: 429,665,287.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,261,456.92 : 721,873,914.66 = 311,449,520.02 : x
  2. Step 2: Convert to fraction form
    523,261,456.92/721,873,914.66 = 311,449,520.02/x
  3. Step 3: Cross multiply
    523,261,456.92x = 721,873,914.66 × 311,449,520.02
  4. Step 4: Simplify right side
    523,261,456.92x = 224,827,284,235,815,424
  5. Step 5: Solve for x
    x = 224,827,284,235,815,424/523,261,456.92
  6. Step 6: Final answer
    x = 429,665,287.33

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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.