Home / 20,351,279.70-30,518,062.20-6,699,150.90

Finding the Fourth Proportional to 20,351,279.70, 30,518,062.20 and 6,699,150.90

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Solution

The fourth proportional to 20,351,279.70, 30,518,062.20 and 6,699,150.90 is: 10,045,810.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,351,279.70 : 30,518,062.20 = 6,699,150.90 : x
  2. Step 2: Convert to fraction form
    20,351,279.70/30,518,062.20 = 6,699,150.90/x
  3. Step 3: Cross multiply
    20,351,279.70x = 30,518,062.20 × 6,699,150.90
  4. Step 4: Simplify right side
    20,351,279.70x = 204,445,103,853,386
  5. Step 5: Solve for x
    x = 204,445,103,853,386/20,351,279.70
  6. Step 6: Final answer
    x = 10,045,810.72

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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.