Home / 291,155,471.02-401,846,449.17-172,073,201.95

Finding the Fourth Proportional to 291,155,471.02, 401,846,449.17 and 172,073,201.95

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Solution

The fourth proportional to 291,155,471.02, 401,846,449.17 and 172,073,201.95 is: 237,491,691.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,155,471.02 : 401,846,449.17 = 172,073,201.95 : x
  2. Step 2: Convert to fraction form
    291,155,471.02/401,846,449.17 = 172,073,201.95/x
  3. Step 3: Cross multiply
    291,155,471.02x = 401,846,449.17 × 172,073,201.95
  4. Step 4: Simplify right side
    291,155,471.02x = 69,147,005,200,919,816
  5. Step 5: Solve for x
    x = 69,147,005,200,919,816/291,155,471.02
  6. Step 6: Final answer
    x = 237,491,691.15

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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.