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Finding the Third Proportional to 18,703,120 and 40,295,456

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Solution

The third proportional to 18,703,120 and 40,295,456 is: 86,815,663.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,703,120 : 40,295,456 = 40,295,456 : x
  2. Step 2: Convert to fraction form
    18,703,120/40,295,456 = 40,295,456/x
  3. Step 3: Cross multiply
    18,703,120x = 40,295,456 × 40,295,456
  4. Step 4: Simplify right side
    18,703,120x = 1,623,723,774,247,936
  5. Step 5: Solve for x
    x = 1,623,723,774,247,936/18,703,120
  6. Step 6: Final answer
    x = 86,815,663.60

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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.