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Finding the Third Proportional to 11,808,378 and 19,282,015

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Solution

The third proportional to 11,808,378 and 19,282,015 is: 31,485,789.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,808,378 : 19,282,015 = 19,282,015 : x
  2. Step 2: Convert to fraction form
    11,808,378/19,282,015 = 19,282,015/x
  3. Step 3: Cross multiply
    11,808,378x = 19,282,015 × 19,282,015
  4. Step 4: Simplify right side
    11,808,378x = 371,796,102,460,225
  5. Step 5: Solve for x
    x = 371,796,102,460,225/11,808,378
  6. Step 6: Final answer
    x = 31,485,789.37

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Why These Related Problems?

These problems maintain the same ratio (1.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.