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Finding the Third Proportional to 287,381,988.75 and 629,170,188.75

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Solution

The third proportional to 287,381,988.75 and 629,170,188.75 is: 1,377,452,804.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,381,988.75 : 629,170,188.75 = 629,170,188.75 : x
  2. Step 2: Convert to fraction form
    287,381,988.75/629,170,188.75 = 629,170,188.75/x
  3. Step 3: Cross multiply
    287,381,988.75x = 629,170,188.75 × 629,170,188.75
  4. Step 4: Simplify right side
    287,381,988.75x = 395,855,126,411,710,656
  5. Step 5: Solve for x
    x = 395,855,126,411,710,656/287,381,988.75
  6. Step 6: Final answer
    x = 1,377,452,804.66

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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.