Home / 20,933,499.43-28,883,995.19-12,229,990.53

Finding the Fourth Proportional to 20,933,499.43, 28,883,995.19 and 12,229,990.53

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Solution

The fourth proportional to 20,933,499.43, 28,883,995.19 and 12,229,990.53 is: 16,874,913.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,933,499.43 : 28,883,995.19 = 12,229,990.53 : x
  2. Step 2: Convert to fraction form
    20,933,499.43/28,883,995.19 = 12,229,990.53/x
  3. Step 3: Cross multiply
    20,933,499.43x = 28,883,995.19 × 12,229,990.53
  4. Step 4: Simplify right side
    20,933,499.43x = 353,250,987,669,440
  5. Step 5: Solve for x
    x = 353,250,987,669,440/20,933,499.43
  6. Step 6: Final answer
    x = 16,874,913.28

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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.