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Finding the Third Proportional to 6,430,056 and 8,990,172

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Solution

The third proportional to 6,430,056 and 8,990,172 is: 12,569,593.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,430,056 : 8,990,172 = 8,990,172 : x
  2. Step 2: Convert to fraction form
    6,430,056/8,990,172 = 8,990,172/x
  3. Step 3: Cross multiply
    6,430,056x = 8,990,172 × 8,990,172
  4. Step 4: Simplify right side
    6,430,056x = 80,823,192,589,584
  5. Step 5: Solve for x
    x = 80,823,192,589,584/6,430,056
  6. Step 6: Final answer
    x = 12,569,593.89

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.