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Finding the Third Proportional to 18,904,810 and 40,499,630

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Solution

The third proportional to 18,904,810 and 40,499,630 is: 86,762,047.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,904,810 : 40,499,630 = 40,499,630 : x
  2. Step 2: Convert to fraction form
    18,904,810/40,499,630 = 40,499,630/x
  3. Step 3: Cross multiply
    18,904,810x = 40,499,630 × 40,499,630
  4. Step 4: Simplify right side
    18,904,810x = 1,640,220,030,136,900
  5. Step 5: Solve for x
    x = 1,640,220,030,136,900/18,904,810
  6. Step 6: Final answer
    x = 86,762,047.87

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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.