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Finding the Third Proportional to 7,220,191 and 15,857,377

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Solution

The third proportional to 7,220,191 and 15,857,377 is: 34,826,835.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,220,191 : 15,857,377 = 15,857,377 : x
  2. Step 2: Convert to fraction form
    7,220,191/15,857,377 = 15,857,377/x
  3. Step 3: Cross multiply
    7,220,191x = 15,857,377 × 15,857,377
  4. Step 4: Simplify right side
    7,220,191x = 251,456,405,320,129
  5. Step 5: Solve for x
    x = 251,456,405,320,129/7,220,191
  6. Step 6: Final answer
    x = 34,826,835.65

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.