Home / 13,669,344.60-20,504,016.90-7,986,643.80

Finding the Fourth Proportional to 13,669,344.60, 20,504,016.90 and 7,986,643.80

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Solution

The fourth proportional to 13,669,344.60, 20,504,016.90 and 7,986,643.80 is: 11,979,965.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,669,344.60 : 20,504,016.90 = 7,986,643.80 : x
  2. Step 2: Convert to fraction form
    13,669,344.60/20,504,016.90 = 7,986,643.80/x
  3. Step 3: Cross multiply
    13,669,344.60x = 20,504,016.90 × 7,986,643.80
  4. Step 4: Simplify right side
    13,669,344.60x = 163,758,279,449,480.22
  5. Step 5: Solve for x
    x = 163,758,279,449,480.22/13,669,344.60
  6. Step 6: Final answer
    x = 11,979,965.70

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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.