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Finding the Third Proportional to 80,701,382 and 128,474,498

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Solution

The third proportional to 80,701,382 and 128,474,498 is: 204,528,054.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,701,382 : 128,474,498 = 128,474,498 : x
  2. Step 2: Convert to fraction form
    80,701,382/128,474,498 = 128,474,498/x
  3. Step 3: Cross multiply
    80,701,382x = 128,474,498 × 128,474,498
  4. Step 4: Simplify right side
    80,701,382x = 16,505,696,636,352,004
  5. Step 5: Solve for x
    x = 16,505,696,636,352,004/80,701,382
  6. Step 6: Final answer
    x = 204,528,054.26

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.