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Finding the Third Proportional to 5,487,480 and 11,817,788

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Solution

The third proportional to 5,487,480 and 11,817,788 is: 25,450,682.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,487,480 : 11,817,788 = 11,817,788 : x
  2. Step 2: Convert to fraction form
    5,487,480/11,817,788 = 11,817,788/x
  3. Step 3: Cross multiply
    5,487,480x = 11,817,788 × 11,817,788
  4. Step 4: Simplify right side
    5,487,480x = 139,660,113,212,944
  5. Step 5: Solve for x
    x = 139,660,113,212,944/5,487,480
  6. Step 6: Final answer
    x = 25,450,682.87

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.