Home / 21,207,112.92-29,266,203.42-11,788,788.18

Finding the Fourth Proportional to 21,207,112.92, 29,266,203.42 and 11,788,788.18

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Solution

The fourth proportional to 21,207,112.92, 29,266,203.42 and 11,788,788.18 is: 16,268,743.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,207,112.92 : 29,266,203.42 = 11,788,788.18 : x
  2. Step 2: Convert to fraction form
    21,207,112.92/29,266,203.42 = 11,788,788.18/x
  3. Step 3: Cross multiply
    21,207,112.92x = 29,266,203.42 × 11,788,788.18
  4. Step 4: Simplify right side
    21,207,112.92x = 345,013,072,951,171.56
  5. Step 5: Solve for x
    x = 345,013,072,951,171.56/21,207,112.92
  6. Step 6: Final answer
    x = 16,268,743.15

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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.