Home / 20,115,139.28-30,192,195.08-19,022,732.78

Finding the Fourth Proportional to 20,115,139.28, 30,192,195.08 and 19,022,732.78

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Solution

The fourth proportional to 20,115,139.28, 30,192,195.08 and 19,022,732.78 is: 28,552,527.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,115,139.28 : 30,192,195.08 = 19,022,732.78 : x
  2. Step 2: Convert to fraction form
    20,115,139.28/30,192,195.08 = 19,022,732.78/x
  3. Step 3: Cross multiply
    20,115,139.28x = 30,192,195.08 × 19,022,732.78
  4. Step 4: Simplify right side
    20,115,139.28x = 574,338,058,945,066.50
  5. Step 5: Solve for x
    x = 574,338,058,945,066.50/20,115,139.28
  6. Step 6: Final answer
    x = 28,552,527.08

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1.5x scale

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.