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Finding the Third Proportional to 16,816,221 and 36,421,605

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Solution

The third proportional to 16,816,221 and 36,421,605 is: 78,884,150.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,816,221 : 36,421,605 = 36,421,605 : x
  2. Step 2: Convert to fraction form
    16,816,221/36,421,605 = 36,421,605/x
  3. Step 3: Cross multiply
    16,816,221x = 36,421,605 × 36,421,605
  4. Step 4: Simplify right side
    16,816,221x = 1,326,533,310,776,025
  5. Step 5: Solve for x
    x = 1,326,533,310,776,025/16,816,221
  6. Step 6: Final answer
    x = 78,884,150.65

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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.