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Finding the Third Proportional to 13,109,042 and 20,519,220

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Solution

The third proportional to 13,109,042 and 20,519,220 is: 32,118,166.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,109,042 : 20,519,220 = 20,519,220 : x
  2. Step 2: Convert to fraction form
    13,109,042/20,519,220 = 20,519,220/x
  3. Step 3: Cross multiply
    13,109,042x = 20,519,220 × 20,519,220
  4. Step 4: Simplify right side
    13,109,042x = 421,038,389,408,400
  5. Step 5: Solve for x
    x = 421,038,389,408,400/13,109,042
  6. Step 6: Final answer
    x = 32,118,166.18

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.