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Finding the Third Proportional to 3,989,507 and 6,318,256

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Solution

The third proportional to 3,989,507 and 6,318,256 is: 10,006,338.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,989,507 : 6,318,256 = 6,318,256 : x
  2. Step 2: Convert to fraction form
    3,989,507/6,318,256 = 6,318,256/x
  3. Step 3: Cross multiply
    3,989,507x = 6,318,256 × 6,318,256
  4. Step 4: Simplify right side
    3,989,507x = 39,920,358,881,536
  5. Step 5: Solve for x
    x = 39,920,358,881,536/3,989,507
  6. Step 6: Final answer
    x = 10,006,338.85

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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.