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Finding the Third Proportional to 7,211,808 and 11,161,152

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Solution

The third proportional to 7,211,808 and 11,161,152 is: 17,273,243.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,211,808 : 11,161,152 = 11,161,152 : x
  2. Step 2: Convert to fraction form
    7,211,808/11,161,152 = 11,161,152/x
  3. Step 3: Cross multiply
    7,211,808x = 11,161,152 × 11,161,152
  4. Step 4: Simplify right side
    7,211,808x = 124,571,313,967,104
  5. Step 5: Solve for x
    x = 124,571,313,967,104/7,211,808
  6. Step 6: Final answer
    x = 17,273,243.27

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.