Home / 20,689,036.68-28,548,826.62-11,522,532.36

Finding the Fourth Proportional to 20,689,036.68, 28,548,826.62 and 11,522,532.36

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Solution

The fourth proportional to 20,689,036.68, 28,548,826.62 and 11,522,532.36 is: 15,899,956.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,689,036.68 : 28,548,826.62 = 11,522,532.36 : x
  2. Step 2: Convert to fraction form
    20,689,036.68/28,548,826.62 = 11,522,532.36/x
  3. Step 3: Cross multiply
    20,689,036.68x = 28,548,826.62 × 11,522,532.36
  4. Step 4: Simplify right side
    20,689,036.68x = 328,954,778,568,979.44
  5. Step 5: Solve for x
    x = 328,954,778,568,979.44/20,689,036.68
  6. Step 6: Final answer
    x = 15,899,956.27

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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.