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Finding the Third Proportional to 100,328,699 and 220,387,149

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Solution

The third proportional to 100,328,699 and 220,387,149 is: 484,113,677.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,328,699 : 220,387,149 = 220,387,149 : x
  2. Step 2: Convert to fraction form
    100,328,699/220,387,149 = 220,387,149/x
  3. Step 3: Cross multiply
    100,328,699x = 220,387,149 × 220,387,149
  4. Step 4: Simplify right side
    100,328,699x = 48,570,495,444,348,200
  5. Step 5: Solve for x
    x = 48,570,495,444,348,200/100,328,699
  6. Step 6: Final answer
    x = 484,113,677.63

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.