Home / 20,583,734.38-28,405,597.39-11,291,380.86

Finding the Fourth Proportional to 20,583,734.38, 28,405,597.39 and 11,291,380.86

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Solution

The fourth proportional to 20,583,734.38, 28,405,597.39 and 11,291,380.86 is: 15,582,129.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,583,734.38 : 28,405,597.39 = 11,291,380.86 : x
  2. Step 2: Convert to fraction form
    20,583,734.38/28,405,597.39 = 11,291,380.86/x
  3. Step 3: Cross multiply
    20,583,734.38x = 28,405,597.39 × 11,291,380.86
  4. Step 4: Simplify right side
    20,583,734.38x = 320,738,418,764,604.50
  5. Step 5: Solve for x
    x = 320,738,418,764,604.50/20,583,734.38
  6. Step 6: Final answer
    x = 15,582,129.70

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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.