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Finding the Third Proportional to 7,687,538 and 11,791,923

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Solution

The third proportional to 7,687,538 and 11,791,923 is: 18,087,643.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,687,538 : 11,791,923 = 11,791,923 : x
  2. Step 2: Convert to fraction form
    7,687,538/11,791,923 = 11,791,923/x
  3. Step 3: Cross multiply
    7,687,538x = 11,791,923 × 11,791,923
  4. Step 4: Simplify right side
    7,687,538x = 139,049,448,037,929
  5. Step 5: Solve for x
    x = 139,049,448,037,929/7,687,538
  6. Step 6: Final answer
    x = 18,087,643.67

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.