Home / 27,647,720.70-38,168,199.45-20,197,016.16

Finding the Fourth Proportional to 27,647,720.70, 38,168,199.45 and 20,197,016.16

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Solution

The fourth proportional to 27,647,720.70, 38,168,199.45 and 20,197,016.16 is: 27,882,361.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,647,720.70 : 38,168,199.45 = 20,197,016.16 : x
  2. Step 2: Convert to fraction form
    27,647,720.70/38,168,199.45 = 20,197,016.16/x
  3. Step 3: Cross multiply
    27,647,720.70x = 38,168,199.45 × 20,197,016.16
  4. Step 4: Simplify right side
    27,647,720.70x = 770,883,741,089,753.12
  5. Step 5: Solve for x
    x = 770,883,741,089,753.12/27,647,720.70
  6. Step 6: Final answer
    x = 27,882,361.42

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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.