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Finding the Third Proportional to 4,039,874 and 8,709,508

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Solution

The third proportional to 4,039,874 and 8,709,508 is: 18,776,706.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,039,874 : 8,709,508 = 8,709,508 : x
  2. Step 2: Convert to fraction form
    4,039,874/8,709,508 = 8,709,508/x
  3. Step 3: Cross multiply
    4,039,874x = 8,709,508 × 8,709,508
  4. Step 4: Simplify right side
    4,039,874x = 75,855,529,602,064
  5. Step 5: Solve for x
    x = 75,855,529,602,064/4,039,874
  6. Step 6: Final answer
    x = 18,776,706.80

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.