Home / 21,509,542.76-29,682,795.24-11,720,067.39

Finding the Fourth Proportional to 21,509,542.76, 29,682,795.24 and 11,720,067.39

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Solution

The fourth proportional to 21,509,542.76, 29,682,795.24 and 11,720,067.39 is: 16,173,489.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,509,542.76 : 29,682,795.24 = 11,720,067.39 : x
  2. Step 2: Convert to fraction form
    21,509,542.76/29,682,795.24 = 11,720,067.39/x
  3. Step 3: Cross multiply
    21,509,542.76x = 29,682,795.24 × 11,720,067.39
  4. Step 4: Simplify right side
    21,509,542.76x = 347,884,360,536,371.25
  5. Step 5: Solve for x
    x = 347,884,360,536,371.25/21,509,542.76
  6. Step 6: Final answer
    x = 16,173,489.34

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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.