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Finding the Third Proportional to 3,989,760.50 and 6,318,660

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Solution

The third proportional to 3,989,760.50 and 6,318,660 is: 10,006,982.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,989,760.50 : 6,318,660 = 6,318,660 : x
  2. Step 2: Convert to fraction form
    3,989,760.50/6,318,660 = 6,318,660/x
  3. Step 3: Cross multiply
    3,989,760.50x = 6,318,660 × 6,318,660
  4. Step 4: Simplify right side
    3,989,760.50x = 39,925,464,195,600
  5. Step 5: Solve for x
    x = 39,925,464,195,600/3,989,760.50
  6. Step 6: Final answer
    x = 10,006,982.67

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.