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Finding the Third Proportional to 7,129,935 and 15,396,147

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Solution

The third proportional to 7,129,935 and 15,396,147 is: 33,245,933.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,129,935 : 15,396,147 = 15,396,147 : x
  2. Step 2: Convert to fraction form
    7,129,935/15,396,147 = 15,396,147/x
  3. Step 3: Cross multiply
    7,129,935x = 15,396,147 × 15,396,147
  4. Step 4: Simplify right side
    7,129,935x = 237,041,342,445,609
  5. Step 5: Solve for x
    x = 237,041,342,445,609/7,129,935
  6. Step 6: Final answer
    x = 33,245,933.16

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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.