Home / 18,752,626.68-28,109,758.77-12,687,999.18

Finding the Fourth Proportional to 18,752,626.68, 28,109,758.77 and 12,687,999.18

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Solution

The fourth proportional to 18,752,626.68, 28,109,758.77 and 12,687,999.18 is: 19,019,020.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,752,626.68 : 28,109,758.77 = 12,687,999.18 : x
  2. Step 2: Convert to fraction form
    18,752,626.68/28,109,758.77 = 12,687,999.18/x
  3. Step 3: Cross multiply
    18,752,626.68x = 28,109,758.77 × 12,687,999.18
  4. Step 4: Simplify right side
    18,752,626.68x = 356,656,596,223,757.81
  5. Step 5: Solve for x
    x = 356,656,596,223,757.81/18,752,626.68
  6. Step 6: Final answer
    x = 19,019,020.76

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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.