Home / 721,777,173.04-996,053,235.96-391,752,380.08

Finding the Fourth Proportional to 721,777,173.04, 996,053,235.96 and 391,752,380.08

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Solution

The fourth proportional to 721,777,173.04, 996,053,235.96 and 391,752,380.08 is: 540,618,684.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,777,173.04 : 996,053,235.96 = 391,752,380.08 : x
  2. Step 2: Convert to fraction form
    721,777,173.04/996,053,235.96 = 391,752,380.08/x
  3. Step 3: Cross multiply
    721,777,173.04x = 996,053,235.96 × 391,752,380.08
  4. Step 4: Simplify right side
    721,777,173.04x = 390,206,225,873,715,840
  5. Step 5: Solve for x
    x = 390,206,225,873,715,840/721,777,173.04
  6. Step 6: Final answer
    x = 540,618,684.61

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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.