Home / 20,392,249.85-28,142,047.20-11,099,370.68

Finding the Fourth Proportional to 20,392,249.85, 28,142,047.20 and 11,099,370.68

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Solution

The fourth proportional to 20,392,249.85, 28,142,047.20 and 11,099,370.68 is: 15,317,535.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,392,249.85 : 28,142,047.20 = 11,099,370.68 : x
  2. Step 2: Convert to fraction form
    20,392,249.85/28,142,047.20 = 11,099,370.68/x
  3. Step 3: Cross multiply
    20,392,249.85x = 28,142,047.20 × 11,099,370.68
  4. Step 4: Simplify right side
    20,392,249.85x = 312,359,013,426,145.88
  5. Step 5: Solve for x
    x = 312,359,013,426,145.88/20,392,249.85
  6. Step 6: Final answer
    x = 15,317,535.62

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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.