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Finding the Third Proportional to 13,178,780 and 28,489,444

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Solution

The third proportional to 13,178,780 and 28,489,444 is: 61,587,523.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,178,780 : 28,489,444 = 28,489,444 : x
  2. Step 2: Convert to fraction form
    13,178,780/28,489,444 = 28,489,444/x
  3. Step 3: Cross multiply
    13,178,780x = 28,489,444 × 28,489,444
  4. Step 4: Simplify right side
    13,178,780x = 811,648,419,429,136
  5. Step 5: Solve for x
    x = 811,648,419,429,136/13,178,780
  6. Step 6: Final answer
    x = 61,587,523.23

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.