Home / 20,464,514.39-28,240,856.65-11,296,960.31

Finding the Fourth Proportional to 20,464,514.39, 28,240,856.65 and 11,296,960.31

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Solution

The fourth proportional to 20,464,514.39, 28,240,856.65 and 11,296,960.31 is: 15,589,709.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,464,514.39 : 28,240,856.65 = 11,296,960.31 : x
  2. Step 2: Convert to fraction form
    20,464,514.39/28,240,856.65 = 11,296,960.31/x
  3. Step 3: Cross multiply
    20,464,514.39x = 28,240,856.65 × 11,296,960.31
  4. Step 4: Simplify right side
    20,464,514.39x = 319,035,836,780,172.94
  5. Step 5: Solve for x
    x = 319,035,836,780,172.94/20,464,514.39
  6. Step 6: Final answer
    x = 15,589,709.61

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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.