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Finding the Third Proportional to 3,974,574 and 8,621,286

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Solution

The third proportional to 3,974,574 and 8,621,286 is: 18,700,512.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,974,574 : 8,621,286 = 8,621,286 : x
  2. Step 2: Convert to fraction form
    3,974,574/8,621,286 = 8,621,286/x
  3. Step 3: Cross multiply
    3,974,574x = 8,621,286 × 8,621,286
  4. Step 4: Simplify right side
    3,974,574x = 74,326,572,293,796
  5. Step 5: Solve for x
    x = 74,326,572,293,796/3,974,574
  6. Step 6: Final answer
    x = 18,700,512.88

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.