Home / 12,189,515.80-16,821,438.60-6,682,824.76

Finding the Fourth Proportional to 12,189,515.80, 16,821,438.60 and 6,682,824.76

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Solution

The fourth proportional to 12,189,515.80, 16,821,438.60 and 6,682,824.76 is: 9,222,247.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,189,515.80 : 16,821,438.60 = 6,682,824.76 : x
  2. Step 2: Convert to fraction form
    12,189,515.80/16,821,438.60 = 6,682,824.76/x
  3. Step 3: Cross multiply
    12,189,515.80x = 16,821,438.60 × 6,682,824.76
  4. Step 4: Simplify right side
    12,189,515.80x = 112,414,726,374,899.75
  5. Step 5: Solve for x
    x = 112,414,726,374,899.75/12,189,515.80
  6. Step 6: Final answer
    x = 9,222,247.07

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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.