Home / 12,661,974.80-18,992,962.20-3,686,819.60

Finding the Fourth Proportional to 12,661,974.80, 18,992,962.20 and 3,686,819.60

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Solution

The fourth proportional to 12,661,974.80, 18,992,962.20 and 3,686,819.60 is: 5,530,229.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,661,974.80 : 18,992,962.20 = 3,686,819.60 : x
  2. Step 2: Convert to fraction form
    12,661,974.80/18,992,962.20 = 3,686,819.60/x
  3. Step 3: Cross multiply
    12,661,974.80x = 18,992,962.20 × 3,686,819.60
  4. Step 4: Simplify right side
    12,661,974.80x = 70,023,625,301,019.12
  5. Step 5: Solve for x
    x = 70,023,625,301,019.12/12,661,974.80
  6. Step 6: Final answer
    x = 5,530,229.40

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1.5x scale

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.