Home / 20,434,744.56-28,206,780.92-12,177,396.19

Finding the Fourth Proportional to 20,434,744.56, 28,206,780.92 and 12,177,396.19

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Solution

The fourth proportional to 20,434,744.56, 28,206,780.92 and 12,177,396.19 is: 16,808,878.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,434,744.56 : 28,206,780.92 = 12,177,396.19 : x
  2. Step 2: Convert to fraction form
    20,434,744.56/28,206,780.92 = 12,177,396.19/x
  3. Step 3: Cross multiply
    20,434,744.56x = 28,206,780.92 × 12,177,396.19
  4. Step 4: Simplify right side
    20,434,744.56x = 343,485,146,561,664.44
  5. Step 5: Solve for x
    x = 343,485,146,561,664.44/20,434,744.56
  6. Step 6: Final answer
    x = 16,808,878.89

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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.