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Finding the Third Proportional to 20,641,476 and 28,873,458

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Solution

The third proportional to 20,641,476 and 28,873,458 is: 40,388,418.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,641,476 : 28,873,458 = 28,873,458 : x
  2. Step 2: Convert to fraction form
    20,641,476/28,873,458 = 28,873,458/x
  3. Step 3: Cross multiply
    20,641,476x = 28,873,458 × 28,873,458
  4. Step 4: Simplify right side
    20,641,476x = 833,676,576,877,764
  5. Step 5: Solve for x
    x = 833,676,576,877,764/20,641,476
  6. Step 6: Final answer
    x = 40,388,418.78

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.