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Finding the Third Proportional to 12,920,568 and 18,819,996

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Solution

The third proportional to 12,920,568 and 18,819,996 is: 27,413,055.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,920,568 : 18,819,996 = 18,819,996 : x
  2. Step 2: Convert to fraction form
    12,920,568/18,819,996 = 18,819,996/x
  3. Step 3: Cross multiply
    12,920,568x = 18,819,996 × 18,819,996
  4. Step 4: Simplify right side
    12,920,568x = 354,192,249,440,016
  5. Step 5: Solve for x
    x = 354,192,249,440,016/12,920,568
  6. Step 6: Final answer
    x = 27,413,055.64

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.