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Finding the Third Proportional to 1,990,910.07 and 3,147,583.11

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Solution

The third proportional to 1,990,910.07 and 3,147,583.11 is: 4,976,256.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,910.07 : 3,147,583.11 = 3,147,583.11 : x
  2. Step 2: Convert to fraction form
    1,990,910.07/3,147,583.11 = 3,147,583.11/x
  3. Step 3: Cross multiply
    1,990,910.07x = 3,147,583.11 × 3,147,583.11
  4. Step 4: Simplify right side
    1,990,910.07x = 9,907,279,455,012.97
  5. Step 5: Solve for x
    x = 9,907,279,455,012.97/1,990,910.07
  6. Step 6: Final answer
    x = 4,976,256.63

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.