Home / 19,161,251.40-28,741,877.10-12,358,806.60

Finding the Fourth Proportional to 19,161,251.40, 28,741,877.10 and 12,358,806.60

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Solution

The fourth proportional to 19,161,251.40, 28,741,877.10 and 12,358,806.60 is: 18,538,209.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,161,251.40 : 28,741,877.10 = 12,358,806.60 : x
  2. Step 2: Convert to fraction form
    19,161,251.40/28,741,877.10 = 12,358,806.60/x
  3. Step 3: Cross multiply
    19,161,251.40x = 28,741,877.10 × 12,358,806.60
  4. Step 4: Simplify right side
    19,161,251.40x = 355,215,300,399,868.88
  5. Step 5: Solve for x
    x = 355,215,300,399,868.88/19,161,251.40
  6. Step 6: Final answer
    x = 18,538,209.90

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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.