Home / 19,093,448.20-28,615,289.10-8,857,121.80

Finding the Fourth Proportional to 19,093,448.20, 28,615,289.10 and 8,857,121.80

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Solution

The fourth proportional to 19,093,448.20, 28,615,289.10 and 8,857,121.80 is: 13,274,139.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,093,448.20 : 28,615,289.10 = 8,857,121.80 : x
  2. Step 2: Convert to fraction form
    19,093,448.20/28,615,289.10 = 8,857,121.80/x
  3. Step 3: Cross multiply
    19,093,448.20x = 28,615,289.10 × 8,857,121.80
  4. Step 4: Simplify right side
    19,093,448.20x = 253,449,100,900,912.41
  5. Step 5: Solve for x
    x = 253,449,100,900,912.41/19,093,448.20
  6. Step 6: Final answer
    x = 13,274,139.81

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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.