Home / 28,278,883.23-42,359,471.87-17,992,790.43

Finding the Fourth Proportional to 28,278,883.23, 42,359,471.87 and 17,992,790.43

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Solution

The fourth proportional to 28,278,883.23, 42,359,471.87 and 17,992,790.43 is: 26,951,739.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,278,883.23 : 42,359,471.87 = 17,992,790.43 : x
  2. Step 2: Convert to fraction form
    28,278,883.23/42,359,471.87 = 17,992,790.43/x
  3. Step 3: Cross multiply
    28,278,883.23x = 42,359,471.87 × 17,992,790.43
  4. Step 4: Simplify right side
    28,278,883.23x = 762,165,099,992,426.25
  5. Step 5: Solve for x
    x = 762,165,099,992,426.25/28,278,883.23
  6. Step 6: Final answer
    x = 26,951,739.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.