Home / 721,916,682,365.61-996,268,913,704.53-396,767,499,251.55

Finding the Fourth Proportional to 721,916,682,365.61, 996,268,913,704.53 and 396,767,499,251.55

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Solution

The fourth proportional to 721,916,682,365.61, 996,268,913,704.53 and 396,767,499,251.55 is: 547,552,280,101.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,916,682,365.61 : 996,268,913,704.53 = 396,767,499,251.55 : x
  2. Step 2: Convert to fraction form
    721,916,682,365.61/996,268,913,704.53 = 396,767,499,251.55/x
  3. Step 3: Cross multiply
    721,916,682,365.61x = 996,268,913,704.53 × 396,767,499,251.55
  4. Step 4: Simplify right side
    721,916,682,365.61x = 395,287,125,472,604,663,578,624
  5. Step 5: Solve for x
    x = 395,287,125,472,604,663,578,624/721,916,682,365.61
  6. Step 6: Final answer
    x = 547,552,280,101.51

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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.