Home / 20,789,857.38-28,693,543.11-12,093,071.25

Finding the Fourth Proportional to 20,789,857.38, 28,693,543.11 and 12,093,071.25

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Solution

The fourth proportional to 20,789,857.38, 28,693,543.11 and 12,093,071.25 is: 16,690,497.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,789,857.38 : 28,693,543.11 = 12,093,071.25 : x
  2. Step 2: Convert to fraction form
    20,789,857.38/28,693,543.11 = 12,093,071.25/x
  3. Step 3: Cross multiply
    20,789,857.38x = 28,693,543.11 × 12,093,071.25
  4. Step 4: Simplify right side
    20,789,857.38x = 346,993,061,244,176.56
  5. Step 5: Solve for x
    x = 346,993,061,244,176.56/20,789,857.38
  6. Step 6: Final answer
    x = 16,690,497.43

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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.