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Finding the Third Proportional to 12,507,149.81 and 18,687,080.53

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Solution

The third proportional to 12,507,149.81 and 18,687,080.53 is: 27,920,588.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,507,149.81 : 18,687,080.53 = 18,687,080.53 : x
  2. Step 2: Convert to fraction form
    12,507,149.81/18,687,080.53 = 18,687,080.53/x
  3. Step 3: Cross multiply
    12,507,149.81x = 18,687,080.53 × 18,687,080.53
  4. Step 4: Simplify right side
    12,507,149.81x = 349,206,978,781,422.81
  5. Step 5: Solve for x
    x = 349,206,978,781,422.81/12,507,149.81
  6. Step 6: Final answer
    x = 27,920,588.14

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.