Home / 721,916,682,399.56-996,268,913,751.44-396,767,499,285.60

Finding the Fourth Proportional to 721,916,682,399.56, 996,268,913,751.44 and 396,767,499,285.60

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Solution

The fourth proportional to 721,916,682,399.56, 996,268,913,751.44 and 396,767,499,285.60 is: 547,552,280,148.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,916,682,399.56 : 996,268,913,751.44 = 396,767,499,285.60 : x
  2. Step 2: Convert to fraction form
    721,916,682,399.56/996,268,913,751.44 = 396,767,499,285.60/x
  3. Step 3: Cross multiply
    721,916,682,399.56x = 996,268,913,751.44 × 396,767,499,285.60
  4. Step 4: Simplify right side
    721,916,682,399.56x = 395,287,125,525,139,898,236,928
  5. Step 5: Solve for x
    x = 395,287,125,525,139,898,236,928/721,916,682,399.56
  6. Step 6: Final answer
    x = 547,552,280,148.53

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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.