Home / 1,321,177,049.94-1,821,531,832.05-1,082,141,641.88

Finding the Fourth Proportional to 1,321,177,049.94, 1,821,531,832.05 and 1,082,141,641.88

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Solution

The fourth proportional to 1,321,177,049.94, 1,821,531,832.05 and 1,082,141,641.88 is: 1,491,969,185.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,177,049.94 : 1,821,531,832.05 = 1,082,141,641.88 : x
  2. Step 2: Convert to fraction form
    1,321,177,049.94/1,821,531,832.05 = 1,082,141,641.88/x
  3. Step 3: Cross multiply
    1,321,177,049.94x = 1,821,531,832.05 × 1,082,141,641.88
  4. Step 4: Simplify right side
    1,321,177,049.94x = 1,971,155,447,471,271,680
  5. Step 5: Solve for x
    x = 1,971,155,447,471,271,680/1,321,177,049.94
  6. Step 6: Final answer
    x = 1,491,969,185.78

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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.