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Finding the Third Proportional to 8,538,516 and 18,669,816

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Solution

The third proportional to 8,538,516 and 18,669,816 is: 40,822,319.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,538,516 : 18,669,816 = 18,669,816 : x
  2. Step 2: Convert to fraction form
    8,538,516/18,669,816 = 18,669,816/x
  3. Step 3: Cross multiply
    8,538,516x = 18,669,816 × 18,669,816
  4. Step 4: Simplify right side
    8,538,516x = 348,562,029,473,856
  5. Step 5: Solve for x
    x = 348,562,029,473,856/8,538,516
  6. Step 6: Final answer
    x = 40,822,319.65

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.