Home / 20,056,891.72-27,616,536.22-15,664,360.54

Finding the Fourth Proportional to 20,056,891.72, 27,616,536.22 and 15,664,360.54

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Solution

The fourth proportional to 20,056,891.72, 27,616,536.22 and 15,664,360.54 is: 21,568,415.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,056,891.72 : 27,616,536.22 = 15,664,360.54 : x
  2. Step 2: Convert to fraction form
    20,056,891.72/27,616,536.22 = 15,664,360.54/x
  3. Step 3: Cross multiply
    20,056,891.72x = 27,616,536.22 × 15,664,360.54
  4. Step 4: Simplify right side
    20,056,891.72x = 432,595,380,216,048.69
  5. Step 5: Solve for x
    x = 432,595,380,216,048.69/20,056,891.72
  6. Step 6: Final answer
    x = 21,568,415.80

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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.