Home / 20,568,640.05-28,384,108.07-11,275,892.51

Finding the Fourth Proportional to 20,568,640.05, 28,384,108.07 and 11,275,892.51

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Solution

The fourth proportional to 20,568,640.05, 28,384,108.07 and 11,275,892.51 is: 15,560,394.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,568,640.05 : 28,384,108.07 = 11,275,892.51 : x
  2. Step 2: Convert to fraction form
    20,568,640.05/28,384,108.07 = 11,275,892.51/x
  3. Step 3: Cross multiply
    20,568,640.05x = 28,384,108.07 × 11,275,892.51
  4. Step 4: Simplify right side
    20,568,640.05x = 320,056,151,391,243.56
  5. Step 5: Solve for x
    x = 320,056,151,391,243.56/20,568,640.05
  6. Step 6: Final answer
    x = 15,560,394.40

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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.