Home / 21,110,146.39-29,131,805.16-11,942,789.14

Finding the Fourth Proportional to 21,110,146.39, 29,131,805.16 and 11,942,789.14

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Solution

The fourth proportional to 21,110,146.39, 29,131,805.16 and 11,942,789.14 is: 16,480,937.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,110,146.39 : 29,131,805.16 = 11,942,789.14 : x
  2. Step 2: Convert to fraction form
    21,110,146.39/29,131,805.16 = 11,942,789.14/x
  3. Step 3: Cross multiply
    21,110,146.39x = 29,131,805.16 × 11,942,789.14
  4. Step 4: Simplify right side
    21,110,146.39x = 347,915,006,293,444
  5. Step 5: Solve for x
    x = 347,915,006,293,444/21,110,146.39
  6. Step 6: Final answer
    x = 16,480,937.64

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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.