Home / 20,131,338.78-27,781,567.11-11,429,333.82

Finding the Fourth Proportional to 20,131,338.78, 27,781,567.11 and 11,429,333.82

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Solution

The fourth proportional to 20,131,338.78, 27,781,567.11 and 11,429,333.82 is: 15,772,662.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,131,338.78 : 27,781,567.11 = 11,429,333.82 : x
  2. Step 2: Convert to fraction form
    20,131,338.78/27,781,567.11 = 11,429,333.82/x
  3. Step 3: Cross multiply
    20,131,338.78x = 27,781,567.11 × 11,429,333.82
  4. Step 4: Simplify right side
    20,131,338.78x = 317,524,804,542,922.69
  5. Step 5: Solve for x
    x = 317,524,804,542,922.69/20,131,338.78
  6. Step 6: Final answer
    x = 15,772,662.12

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1.5x scale

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.