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Finding the Third Proportional to 2,187,708.75 and 3,311,748.28

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Solution

The third proportional to 2,187,708.75 and 3,311,748.28 is: 5,013,316.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187,708.75 : 3,311,748.28 = 3,311,748.28 : x
  2. Step 2: Convert to fraction form
    2,187,708.75/3,311,748.28 = 3,311,748.28/x
  3. Step 3: Cross multiply
    2,187,708.75x = 3,311,748.28 × 3,311,748.28
  4. Step 4: Simplify right side
    2,187,708.75x = 10,967,676,678,362.33
  5. Step 5: Solve for x
    x = 10,967,676,678,362.33/2,187,708.75
  6. Step 6: Final answer
    x = 5,013,316.64

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.