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Finding the Third Proportional to 4,218,866 and 8,736,796

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Solution

The third proportional to 4,218,866 and 8,736,796 is: 18,092,919.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,218,866 : 8,736,796 = 8,736,796 : x
  2. Step 2: Convert to fraction form
    4,218,866/8,736,796 = 8,736,796/x
  3. Step 3: Cross multiply
    4,218,866x = 8,736,796 × 8,736,796
  4. Step 4: Simplify right side
    4,218,866x = 76,331,604,345,616
  5. Step 5: Solve for x
    x = 76,331,604,345,616/4,218,866
  6. Step 6: Final answer
    x = 18,092,919.84

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.