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Finding the Third Proportional to 59,287,284 and 128,469,828

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Solution

The third proportional to 59,287,284 and 128,469,828 is: 278,381,730.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,287,284 : 128,469,828 = 128,469,828 : x
  2. Step 2: Convert to fraction form
    59,287,284/128,469,828 = 128,469,828/x
  3. Step 3: Cross multiply
    59,287,284x = 128,469,828 × 128,469,828
  4. Step 4: Simplify right side
    59,287,284x = 16,504,496,706,349,584
  5. Step 5: Solve for x
    x = 16,504,496,706,349,584/59,287,284
  6. Step 6: Final answer
    x = 278,381,730.33

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.