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Finding the Third Proportional to 12,987,705 and 28,236,054.75

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Solution

The third proportional to 12,987,705 and 28,236,054.75 is: 61,386,887.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,987,705 : 28,236,054.75 = 28,236,054.75 : x
  2. Step 2: Convert to fraction form
    12,987,705/28,236,054.75 = 28,236,054.75/x
  3. Step 3: Cross multiply
    12,987,705x = 28,236,054.75 × 28,236,054.75
  4. Step 4: Simplify right side
    12,987,705x = 797,274,787,844,997.50
  5. Step 5: Solve for x
    x = 797,274,787,844,997.50/12,987,705
  6. Step 6: Final answer
    x = 61,386,887.66

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.