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Finding the Third Proportional to 8,505,220 and 18,190,664

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Solution

The third proportional to 8,505,220 and 18,190,664 is: 38,905,549.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,505,220 : 18,190,664 = 18,190,664 : x
  2. Step 2: Convert to fraction form
    8,505,220/18,190,664 = 18,190,664/x
  3. Step 3: Cross multiply
    8,505,220x = 18,190,664 × 18,190,664
  4. Step 4: Simplify right side
    8,505,220x = 330,900,256,760,896
  5. Step 5: Solve for x
    x = 330,900,256,760,896/8,505,220
  6. Step 6: Final answer
    x = 38,905,549.39

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.