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Finding the Third Proportional to 8,977,815 and 13,929,873

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Solution

The third proportional to 8,977,815 and 13,929,873 is: 21,613,428.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,977,815 : 13,929,873 = 13,929,873 : x
  2. Step 2: Convert to fraction form
    8,977,815/13,929,873 = 13,929,873/x
  3. Step 3: Cross multiply
    8,977,815x = 13,929,873 × 13,929,873
  4. Step 4: Simplify right side
    8,977,815x = 194,041,361,796,129
  5. Step 5: Solve for x
    x = 194,041,361,796,129/8,977,815
  6. Step 6: Final answer
    x = 21,613,428.41

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.