Home / 27,647,719.20-38,168,197.38-20,197,014.66

Finding the Fourth Proportional to 27,647,719.20, 38,168,197.38 and 20,197,014.66

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Solution

The fourth proportional to 27,647,719.20, 38,168,197.38 and 20,197,014.66 is: 27,882,359.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,647,719.20 : 38,168,197.38 = 20,197,014.66 : x
  2. Step 2: Convert to fraction form
    27,647,719.20/38,168,197.38 = 20,197,014.66/x
  3. Step 3: Cross multiply
    27,647,719.20x = 38,168,197.38 × 20,197,014.66
  4. Step 4: Simplify right side
    27,647,719.20x = 770,883,642,029,633.62
  5. Step 5: Solve for x
    x = 770,883,642,029,633.62/27,647,719.20
  6. Step 6: Final answer
    x = 27,882,359.35

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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.