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Finding the Third Proportional to 87,310,788 and 145,509,210

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Solution

The third proportional to 87,310,788 and 145,509,210 is: 242,500,734.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,310,788 : 145,509,210 = 145,509,210 : x
  2. Step 2: Convert to fraction form
    87,310,788/145,509,210 = 145,509,210/x
  3. Step 3: Cross multiply
    87,310,788x = 145,509,210 × 145,509,210
  4. Step 4: Simplify right side
    87,310,788x = 21,172,930,194,824,100
  5. Step 5: Solve for x
    x = 21,172,930,194,824,100/87,310,788
  6. Step 6: Final answer
    x = 242,500,734.21

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Why These Related Problems?

These problems maintain the same ratio (1.67) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.