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Finding the Third Proportional to 28,151,980 and 43,520,769

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Solution

The third proportional to 28,151,980 and 43,520,769 is: 67,279,720.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,151,980 : 43,520,769 = 43,520,769 : x
  2. Step 2: Convert to fraction form
    28,151,980/43,520,769 = 43,520,769/x
  3. Step 3: Cross multiply
    28,151,980x = 43,520,769 × 43,520,769
  4. Step 4: Simplify right side
    28,151,980x = 1,894,057,334,351,361
  5. Step 5: Solve for x
    x = 1,894,057,334,351,361/28,151,980
  6. Step 6: Final answer
    x = 67,279,720.09

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.