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Finding the Third Proportional to 5,420,488 and 10,703,888

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Solution

The third proportional to 5,420,488 and 10,703,888 is: 21,137,067.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,420,488 : 10,703,888 = 10,703,888 : x
  2. Step 2: Convert to fraction form
    5,420,488/10,703,888 = 10,703,888/x
  3. Step 3: Cross multiply
    5,420,488x = 10,703,888 × 10,703,888
  4. Step 4: Simplify right side
    5,420,488x = 114,573,218,316,544
  5. Step 5: Solve for x
    x = 114,573,218,316,544/5,420,488
  6. Step 6: Final answer
    x = 21,137,067.05

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Why These Related Problems?

These problems maintain the same ratio (1.97) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.