Home / 20,627,869.38-28,467,345.47-11,460,512.13

Finding the Fourth Proportional to 20,627,869.38, 28,467,345.47 and 11,460,512.13

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Solution

The fourth proportional to 20,627,869.38, 28,467,345.47 and 11,460,512.13 is: 15,815,998.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,627,869.38 : 28,467,345.47 = 11,460,512.13 : x
  2. Step 2: Convert to fraction form
    20,627,869.38/28,467,345.47 = 11,460,512.13/x
  3. Step 3: Cross multiply
    20,627,869.38x = 28,467,345.47 × 11,460,512.13
  4. Step 4: Simplify right side
    20,627,869.38x = 326,250,358,067,835.56
  5. Step 5: Solve for x
    x = 326,250,358,067,835.56/20,627,869.38
  6. Step 6: Final answer
    x = 15,815,998.83

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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.