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Finding the Third Proportional to 7,220,318 and 15,857,620

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Solution

The third proportional to 7,220,318 and 15,857,620 is: 34,827,290.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,220,318 : 15,857,620 = 15,857,620 : x
  2. Step 2: Convert to fraction form
    7,220,318/15,857,620 = 15,857,620/x
  3. Step 3: Cross multiply
    7,220,318x = 15,857,620 × 15,857,620
  4. Step 4: Simplify right side
    7,220,318x = 251,464,112,064,400
  5. Step 5: Solve for x
    x = 251,464,112,064,400/7,220,318
  6. Step 6: Final answer
    x = 34,827,290.44

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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.