Home / 20,262,738.48-30,399,789.97-8,140,714.16

Finding the Fourth Proportional to 20,262,738.48, 30,399,789.97 and 8,140,714.16

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Solution

The fourth proportional to 20,262,738.48, 30,399,789.97 and 8,140,714.16 is: 12,213,354.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,262,738.48 : 30,399,789.97 = 8,140,714.16 : x
  2. Step 2: Convert to fraction form
    20,262,738.48/30,399,789.97 = 8,140,714.16/x
  3. Step 3: Cross multiply
    20,262,738.48x = 30,399,789.97 × 8,140,714.16
  4. Step 4: Simplify right side
    20,262,738.48x = 247,476,000,669,804.97
  5. Step 5: Solve for x
    x = 247,476,000,669,804.97/20,262,738.48
  6. Step 6: Final answer
    x = 12,213,354.13

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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.