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Finding the Third Proportional to 20,018,745 and 30,028,140

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Solution

The third proportional to 20,018,745 and 30,028,140 is: 45,042,243.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,018,745 : 30,028,140 = 30,028,140 : x
  2. Step 2: Convert to fraction form
    20,018,745/30,028,140 = 30,028,140/x
  3. Step 3: Cross multiply
    20,018,745x = 30,028,140 × 30,028,140
  4. Step 4: Simplify right side
    20,018,745x = 901,689,191,859,600
  5. Step 5: Solve for x
    x = 901,689,191,859,600/20,018,745
  6. Step 6: Final answer
    x = 45,042,243.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.