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Finding the Third Proportional to 3,276,642 and 5,128,803

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Solution

The third proportional to 3,276,642 and 5,128,803 is: 8,027,920.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,276,642 : 5,128,803 = 5,128,803 : x
  2. Step 2: Convert to fraction form
    3,276,642/5,128,803 = 5,128,803/x
  3. Step 3: Cross multiply
    3,276,642x = 5,128,803 × 5,128,803
  4. Step 4: Simplify right side
    3,276,642x = 26,304,620,212,809
  5. Step 5: Solve for x
    x = 26,304,620,212,809/3,276,642
  6. Step 6: Final answer
    x = 8,027,920.11

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.