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Finding the Third Proportional to 3,993,639 and 8,747,481

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Solution

The third proportional to 3,993,639 and 8,747,481 is: 19,160,075.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,993,639 : 8,747,481 = 8,747,481 : x
  2. Step 2: Convert to fraction form
    3,993,639/8,747,481 = 8,747,481/x
  3. Step 3: Cross multiply
    3,993,639x = 8,747,481 × 8,747,481
  4. Step 4: Simplify right side
    3,993,639x = 76,518,423,845,361
  5. Step 5: Solve for x
    x = 76,518,423,845,361/3,993,639
  6. Step 6: Final answer
    x = 19,160,075.27

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.