Home / 722,231,685.44-996,679,921.44-392,206,736.96

Finding the Fourth Proportional to 722,231,685.44, 996,679,921.44 and 392,206,736.96

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Solution

The fourth proportional to 722,231,685.44, 996,679,921.44 and 392,206,736.96 is: 541,245,403.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,231,685.44 : 996,679,921.44 = 392,206,736.96 : x
  2. Step 2: Convert to fraction form
    722,231,685.44/996,679,921.44 = 392,206,736.96/x
  3. Step 3: Cross multiply
    722,231,685.44x = 996,679,921.44 × 392,206,736.96
  4. Step 4: Simplify right side
    722,231,685.44x = 390,904,579,781,531,520
  5. Step 5: Solve for x
    x = 390,904,579,781,531,520/722,231,685.44
  6. Step 6: Final answer
    x = 541,245,403.19

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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.