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Finding the Third Proportional to 3,121,621 and 6,809,023

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Solution

The third proportional to 3,121,621 and 6,809,023 is: 14,852,153.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121,621 : 6,809,023 = 6,809,023 : x
  2. Step 2: Convert to fraction form
    3,121,621/6,809,023 = 6,809,023/x
  3. Step 3: Cross multiply
    3,121,621x = 6,809,023 × 6,809,023
  4. Step 4: Simplify right side
    3,121,621x = 46,362,794,214,529
  5. Step 5: Solve for x
    x = 46,362,794,214,529/3,121,621
  6. Step 6: Final answer
    x = 14,852,153.49

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.