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Finding the Third Proportional to 3,974,590 and 8,621,318

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Solution

The third proportional to 3,974,590 and 8,621,318 is: 18,700,576.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,974,590 : 8,621,318 = 8,621,318 : x
  2. Step 2: Convert to fraction form
    3,974,590/8,621,318 = 8,621,318/x
  3. Step 3: Cross multiply
    3,974,590x = 8,621,318 × 8,621,318
  4. Step 4: Simplify right side
    3,974,590x = 74,327,124,057,124
  5. Step 5: Solve for x
    x = 74,327,124,057,124/3,974,590
  6. Step 6: Final answer
    x = 18,700,576.43

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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.