Home / 2,189,863.38-3,021,981.57-1,223,010.66

Finding the Fourth Proportional to 2,189,863.38, 3,021,981.57 and 1,223,010.66

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Solution

The fourth proportional to 2,189,863.38, 3,021,981.57 and 1,223,010.66 is: 1,687,738.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,189,863.38 : 3,021,981.57 = 1,223,010.66 : x
  2. Step 2: Convert to fraction form
    2,189,863.38/3,021,981.57 = 1,223,010.66/x
  3. Step 3: Cross multiply
    2,189,863.38x = 3,021,981.57 × 1,223,010.66
  4. Step 4: Simplify right side
    2,189,863.38x = 3,695,915,674,433.54
  5. Step 5: Solve for x
    x = 3,695,915,674,433.54/2,189,863.38
  6. Step 6: Final answer
    x = 1,687,738.02

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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.