Home / 15,687,709.22-21,651,395.37-9,579,661.22

Finding the Fourth Proportional to 15,687,709.22, 21,651,395.37 and 9,579,661.22

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Solution

The fourth proportional to 15,687,709.22, 21,651,395.37 and 9,579,661.22 is: 13,221,371.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,687,709.22 : 21,651,395.37 = 9,579,661.22 : x
  2. Step 2: Convert to fraction form
    15,687,709.22/21,651,395.37 = 9,579,661.22/x
  3. Step 3: Cross multiply
    15,687,709.22x = 21,651,395.37 × 9,579,661.22
  4. Step 4: Simplify right side
    15,687,709.22x = 207,413,032,584,876.56
  5. Step 5: Solve for x
    x = 207,413,032,584,876.56/15,687,709.22
  6. Step 6: Final answer
    x = 13,221,371.56

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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.