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Finding the Third Proportional to 8,680,128 and 18,556,058

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Solution

The third proportional to 8,680,128 and 18,556,058 is: 39,668,457.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,680,128 : 18,556,058 = 18,556,058 : x
  2. Step 2: Convert to fraction form
    8,680,128/18,556,058 = 18,556,058/x
  3. Step 3: Cross multiply
    8,680,128x = 18,556,058 × 18,556,058
  4. Step 4: Simplify right side
    8,680,128x = 344,327,288,499,364
  5. Step 5: Solve for x
    x = 344,327,288,499,364/8,680,128
  6. Step 6: Final answer
    x = 39,668,457.48

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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.