Home / 21,259,921.45-29,338,683.78-11,602,129.45

Finding the Fourth Proportional to 21,259,921.45, 29,338,683.78 and 11,602,129.45

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Solution

The fourth proportional to 21,259,921.45, 29,338,683.78 and 11,602,129.45 is: 16,010,934.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,259,921.45 : 29,338,683.78 = 11,602,129.45 : x
  2. Step 2: Convert to fraction form
    21,259,921.45/29,338,683.78 = 11,602,129.45/x
  3. Step 3: Cross multiply
    21,259,921.45x = 29,338,683.78 × 11,602,129.45
  4. Step 4: Simplify right side
    21,259,921.45x = 340,391,207,108,175.31
  5. Step 5: Solve for x
    x = 340,391,207,108,175.31/21,259,921.45
  6. Step 6: Final answer
    x = 16,010,934.37

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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.