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Finding the Third Proportional to 7,220,289 and 15,685,494

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Solution

The third proportional to 7,220,289 and 15,685,494 is: 34,075,467.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,220,289 : 15,685,494 = 15,685,494 : x
  2. Step 2: Convert to fraction form
    7,220,289/15,685,494 = 15,685,494/x
  3. Step 3: Cross multiply
    7,220,289x = 15,685,494 × 15,685,494
  4. Step 4: Simplify right side
    7,220,289x = 246,034,722,024,036
  5. Step 5: Solve for x
    x = 246,034,722,024,036/7,220,289
  6. Step 6: Final answer
    x = 34,075,467.34

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.