Home / 20,779,408.80-28,675,500.48-11,612,049.12

Finding the Fourth Proportional to 20,779,408.80, 28,675,500.48 and 11,612,049.12

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Solution

The fourth proportional to 20,779,408.80, 28,675,500.48 and 11,612,049.12 is: 16,024,581.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,779,408.80 : 28,675,500.48 = 11,612,049.12 : x
  2. Step 2: Convert to fraction form
    20,779,408.80/28,675,500.48 = 11,612,049.12/x
  3. Step 3: Cross multiply
    20,779,408.80x = 28,675,500.48 × 11,612,049.12
  4. Step 4: Simplify right side
    20,779,408.80x = 332,981,320,114,343.56
  5. Step 5: Solve for x
    x = 332,981,320,114,343.56/20,779,408.80
  6. Step 6: Final answer
    x = 16,024,581.03

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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.