Home / 721,916,682,647.02-996,268,914,092.73-396,767,499,533.02

Finding the Fourth Proportional to 721,916,682,647.02, 996,268,914,092.73 and 396,767,499,533.02

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Solution

The fourth proportional to 721,916,682,647.02, 996,268,914,092.73 and 396,767,499,533.02 is: 547,552,280,489.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,916,682,647.02 : 996,268,914,092.73 = 396,767,499,533.02 : x
  2. Step 2: Convert to fraction form
    721,916,682,647.02/996,268,914,092.73 = 396,767,499,533.02/x
  3. Step 3: Cross multiply
    721,916,682,647.02x = 996,268,914,092.73 × 396,767,499,533.02
  4. Step 4: Simplify right side
    721,916,682,647.02x = 395,287,125,907,049,598,156,800
  5. Step 5: Solve for x
    x = 395,287,125,907,049,598,156,800/721,916,682,647.02
  6. Step 6: Final answer
    x = 547,552,280,489.86

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Double scale
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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.