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Finding the Third Proportional to 80,748,792 and 177,129,440

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Solution

The third proportional to 80,748,792 and 177,129,440 is: 388,548,704.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,748,792 : 177,129,440 = 177,129,440 : x
  2. Step 2: Convert to fraction form
    80,748,792/177,129,440 = 177,129,440/x
  3. Step 3: Cross multiply
    80,748,792x = 177,129,440 × 177,129,440
  4. Step 4: Simplify right side
    80,748,792x = 31,374,838,514,713,600
  5. Step 5: Solve for x
    x = 31,374,838,514,713,600/80,748,792
  6. Step 6: Final answer
    x = 388,548,704.42

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.