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Finding the Third Proportional to 12,848,988 and 18,918,216

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Solution

The third proportional to 12,848,988 and 18,918,216 is: 27,854,247.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,848,988 : 18,918,216 = 18,918,216 : x
  2. Step 2: Convert to fraction form
    12,848,988/18,918,216 = 18,918,216/x
  3. Step 3: Cross multiply
    12,848,988x = 18,918,216 × 18,918,216
  4. Step 4: Simplify right side
    12,848,988x = 357,898,896,622,656
  5. Step 5: Solve for x
    x = 357,898,896,622,656/12,848,988
  6. Step 6: Final answer
    x = 27,854,247.87

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.