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Finding the Third Proportional to 7,129,228 and 15,394,816

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Solution

The third proportional to 7,129,228 and 15,394,816 is: 33,243,481.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,129,228 : 15,394,816 = 15,394,816 : x
  2. Step 2: Convert to fraction form
    7,129,228/15,394,816 = 15,394,816/x
  3. Step 3: Cross multiply
    7,129,228x = 15,394,816 × 15,394,816
  4. Step 4: Simplify right side
    7,129,228x = 237,000,359,673,856
  5. Step 5: Solve for x
    x = 237,000,359,673,856/7,129,228
  6. Step 6: Final answer
    x = 33,243,481.58

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.