Home / 20,177,440.80-30,266,161.20-12,099,537.60

Finding the Fourth Proportional to 20,177,440.80, 30,266,161.20 and 12,099,537.60

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Solution

The fourth proportional to 20,177,440.80, 30,266,161.20 and 12,099,537.60 is: 18,149,306.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,177,440.80 : 30,266,161.20 = 12,099,537.60 : x
  2. Step 2: Convert to fraction form
    20,177,440.80/30,266,161.20 = 12,099,537.60/x
  3. Step 3: Cross multiply
    20,177,440.80x = 30,266,161.20 × 12,099,537.60
  4. Step 4: Simplify right side
    20,177,440.80x = 366,206,555,447,061.12
  5. Step 5: Solve for x
    x = 366,206,555,447,061.12/20,177,440.80
  6. Step 6: Final answer
    x = 18,149,306.40

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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.