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Finding the Third Proportional to 4,972,770 and 7,678,827

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Solution

The third proportional to 4,972,770 and 7,678,827 is: 11,857,452.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,972,770 : 7,678,827 = 7,678,827 : x
  2. Step 2: Convert to fraction form
    4,972,770/7,678,827 = 7,678,827/x
  3. Step 3: Cross multiply
    4,972,770x = 7,678,827 × 7,678,827
  4. Step 4: Simplify right side
    4,972,770x = 58,964,384,095,929
  5. Step 5: Solve for x
    x = 58,964,384,095,929/4,972,770
  6. Step 6: Final answer
    x = 11,857,452.51

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.