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Finding the Third Proportional to 7,687,800 and 10,813,858

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Solution

The third proportional to 7,687,800 and 10,813,858 is: 15,211,051.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,687,800 : 10,813,858 = 10,813,858 : x
  2. Step 2: Convert to fraction form
    7,687,800/10,813,858 = 10,813,858/x
  3. Step 3: Cross multiply
    7,687,800x = 10,813,858 × 10,813,858
  4. Step 4: Simplify right side
    7,687,800x = 116,939,524,844,164
  5. Step 5: Solve for x
    x = 116,939,524,844,164/7,687,800
  6. Step 6: Final answer
    x = 15,211,051.91

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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.