Home / 20,086,998.75-27,720,255.11-10,919,838.33

Finding the Fourth Proportional to 20,086,998.75, 27,720,255.11 and 10,919,838.33

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Solution

The fourth proportional to 20,086,998.75, 27,720,255.11 and 10,919,838.33 is: 15,069,483.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,086,998.75 : 27,720,255.11 = 10,919,838.33 : x
  2. Step 2: Convert to fraction form
    20,086,998.75/27,720,255.11 = 10,919,838.33/x
  3. Step 3: Cross multiply
    20,086,998.75x = 27,720,255.11 × 10,919,838.33
  4. Step 4: Simplify right side
    20,086,998.75x = 302,700,704,267,556.38
  5. Step 5: Solve for x
    x = 302,700,704,267,556.38/20,086,998.75
  6. Step 6: Final answer
    x = 15,069,483.90

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1.5x scale

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.