Home / 20,189,255.40-30,283,883.10-18,834,080.85

Finding the Fourth Proportional to 20,189,255.40, 30,283,883.10 and 18,834,080.85

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Solution

The fourth proportional to 20,189,255.40, 30,283,883.10 and 18,834,080.85 is: 28,251,121.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,189,255.40 : 30,283,883.10 = 18,834,080.85 : x
  2. Step 2: Convert to fraction form
    20,189,255.40/30,283,883.10 = 18,834,080.85/x
  3. Step 3: Cross multiply
    20,189,255.40x = 30,283,883.10 × 18,834,080.85
  4. Step 4: Simplify right side
    20,189,255.40x = 570,369,102,757,348.75
  5. Step 5: Solve for x
    x = 570,369,102,757,348.75/20,189,255.40
  6. Step 6: Final answer
    x = 28,251,121.28

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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.