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Finding the Third Proportional to 3,960,998.72 and 8,445,185.93

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Solution

The third proportional to 3,960,998.72 and 8,445,185.93 is: 18,005,854.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,960,998.72 : 8,445,185.93 = 8,445,185.93 : x
  2. Step 2: Convert to fraction form
    3,960,998.72/8,445,185.93 = 8,445,185.93/x
  3. Step 3: Cross multiply
    3,960,998.72x = 8,445,185.93 × 8,445,185.93
  4. Step 4: Simplify right side
    3,960,998.72x = 71,321,165,386,993.42
  5. Step 5: Solve for x
    x = 71,321,165,386,993.42/3,960,998.72
  6. Step 6: Final answer
    x = 18,005,854.19

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.