Home / 12,589,919.40-18,884,879.10-3,491,999.40

Finding the Fourth Proportional to 12,589,919.40, 18,884,879.10 and 3,491,999.40

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Solution

The fourth proportional to 12,589,919.40, 18,884,879.10 and 3,491,999.40 is: 5,237,999.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,589,919.40 : 18,884,879.10 = 3,491,999.40 : x
  2. Step 2: Convert to fraction form
    12,589,919.40/18,884,879.10 = 3,491,999.40/x
  3. Step 3: Cross multiply
    12,589,919.40x = 18,884,879.10 × 3,491,999.40
  4. Step 4: Simplify right side
    12,589,919.40x = 65,945,986,486,272.55
  5. Step 5: Solve for x
    x = 65,945,986,486,272.55/12,589,919.40
  6. Step 6: Final answer
    x = 5,237,999.10

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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.