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Finding the Third Proportional to 6,391,046 and 8,989,431

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Solution

The third proportional to 6,391,046 and 8,989,431 is: 12,644,232.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,391,046 : 8,989,431 = 8,989,431 : x
  2. Step 2: Convert to fraction form
    6,391,046/8,989,431 = 8,989,431/x
  3. Step 3: Cross multiply
    6,391,046x = 8,989,431 × 8,989,431
  4. Step 4: Simplify right side
    6,391,046x = 80,809,869,703,761
  5. Step 5: Solve for x
    x = 80,809,869,703,761/6,391,046
  6. Step 6: Final answer
    x = 12,644,232.21

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.