Home / 12,611,871-18,917,806.72-3,027,249.54

Finding the Fourth Proportional to 12,611,871, 18,917,806.72 and 3,027,249.54

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Solution

The fourth proportional to 12,611,871, 18,917,806.72 and 3,027,249.54 is: 4,540,874.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,611,871 : 18,917,806.72 = 3,027,249.54 : x
  2. Step 2: Convert to fraction form
    12,611,871/18,917,806.72 = 3,027,249.54/x
  3. Step 3: Cross multiply
    12,611,871x = 18,917,806.72 × 3,027,249.54
  4. Step 4: Simplify right side
    12,611,871x = 57,268,921,690,928.91
  5. Step 5: Solve for x
    x = 57,268,921,690,928.91/12,611,871
  6. Step 6: Final answer
    x = 4,540,874.36

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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.