Home / 121,382,743.60-182,074,115.40-80,568,074.80

Finding the Fourth Proportional to 121,382,743.60, 182,074,115.40 and 80,568,074.80

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Solution

The fourth proportional to 121,382,743.60, 182,074,115.40 and 80,568,074.80 is: 120,852,112.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,382,743.60 : 182,074,115.40 = 80,568,074.80 : x
  2. Step 2: Convert to fraction form
    121,382,743.60/182,074,115.40 = 80,568,074.80/x
  3. Step 3: Cross multiply
    121,382,743.60x = 182,074,115.40 × 80,568,074.80
  4. Step 4: Simplify right side
    121,382,743.60x = 14,669,360,948,691,032
  5. Step 5: Solve for x
    x = 14,669,360,948,691,032/121,382,743.60
  6. Step 6: Final answer
    x = 120,852,112.20

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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.