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Finding the Third Proportional to 3,790,662 and 5,420,689.50

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Solution

The third proportional to 3,790,662 and 5,420,689.50 is: 7,751,647.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,790,662 : 5,420,689.50 = 5,420,689.50 : x
  2. Step 2: Convert to fraction form
    3,790,662/5,420,689.50 = 5,420,689.50/x
  3. Step 3: Cross multiply
    3,790,662x = 5,420,689.50 × 5,420,689.50
  4. Step 4: Simplify right side
    3,790,662x = 29,383,874,655,410.25
  5. Step 5: Solve for x
    x = 29,383,874,655,410.25/3,790,662
  6. Step 6: Final answer
    x = 7,751,647.25

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.