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Finding the Third Proportional to 4,729,818 and 7,212,822

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Solution

The third proportional to 4,729,818 and 7,212,822 is: 10,999,324.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,729,818 : 7,212,822 = 7,212,822 : x
  2. Step 2: Convert to fraction form
    4,729,818/7,212,822 = 7,212,822/x
  3. Step 3: Cross multiply
    4,729,818x = 7,212,822 × 7,212,822
  4. Step 4: Simplify right side
    4,729,818x = 52,024,801,203,684
  5. Step 5: Solve for x
    x = 52,024,801,203,684/4,729,818
  6. Step 6: Final answer
    x = 10,999,324.12

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.