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Finding the Third Proportional to 12,621,186 and 18,048,447

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Solution

The third proportional to 12,621,186 and 18,048,447 is: 25,809,495.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,621,186 : 18,048,447 = 18,048,447 : x
  2. Step 2: Convert to fraction form
    12,621,186/18,048,447 = 18,048,447/x
  3. Step 3: Cross multiply
    12,621,186x = 18,048,447 × 18,048,447
  4. Step 4: Simplify right side
    12,621,186x = 325,746,439,111,809
  5. Step 5: Solve for x
    x = 325,746,439,111,809/12,621,186
  6. Step 6: Final answer
    x = 25,809,495.17

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.