Home / 20,857,924.55-28,783,997.88-11,566,149.22

Finding the Fourth Proportional to 20,857,924.55, 28,783,997.88 and 11,566,149.22

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Solution

The fourth proportional to 20,857,924.55, 28,783,997.88 and 11,566,149.22 is: 15,961,320.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,857,924.55 : 28,783,997.88 = 11,566,149.22 : x
  2. Step 2: Convert to fraction form
    20,857,924.55/28,783,997.88 = 11,566,149.22/x
  3. Step 3: Cross multiply
    20,857,924.55x = 28,783,997.88 × 11,566,149.22
  4. Step 4: Simplify right side
    20,857,924.55x = 332,920,014,524,000.19
  5. Step 5: Solve for x
    x = 332,920,014,524,000.19/20,857,924.55
  6. Step 6: Final answer
    x = 15,961,320.30

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1.5x scale

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.