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Finding the Third Proportional to 18,899,020 and 29,319,564

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Solution

The third proportional to 18,899,020 and 29,319,564 is: 45,485,788.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,899,020 : 29,319,564 = 29,319,564 : x
  2. Step 2: Convert to fraction form
    18,899,020/29,319,564 = 29,319,564/x
  3. Step 3: Cross multiply
    18,899,020x = 29,319,564 × 29,319,564
  4. Step 4: Simplify right side
    18,899,020x = 859,636,833,150,096
  5. Step 5: Solve for x
    x = 859,636,833,150,096/18,899,020
  6. Step 6: Final answer
    x = 45,485,788.85

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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.