Home / 721,777,187.56-996,053,256.04-391,752,394.60

Finding the Fourth Proportional to 721,777,187.56, 996,053,256.04 and 391,752,394.60

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Solution

The fourth proportional to 721,777,187.56, 996,053,256.04 and 391,752,394.60 is: 540,618,704.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,777,187.56 : 996,053,256.04 = 391,752,394.60 : x
  2. Step 2: Convert to fraction form
    721,777,187.56/996,053,256.04 = 391,752,394.60/x
  3. Step 3: Cross multiply
    721,777,187.56x = 996,053,256.04 × 391,752,394.60
  4. Step 4: Simplify right side
    721,777,187.56x = 390,206,248,202,796,928
  5. Step 5: Solve for x
    x = 390,206,248,202,796,928/721,777,187.56
  6. Step 6: Final answer
    x = 540,618,704.68

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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.