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Finding the Third Proportional to 1,321,956,220 and 1,999,936,497

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Solution

The third proportional to 1,321,956,220 and 1,999,936,497 is: 3,025,626,667.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,956,220 : 1,999,936,497 = 1,999,936,497 : x
  2. Step 2: Convert to fraction form
    1,321,956,220/1,999,936,497 = 1,999,936,497/x
  3. Step 3: Cross multiply
    1,321,956,220x = 1,999,936,497 × 1,999,936,497
  4. Step 4: Simplify right side
    1,321,956,220x = 3,999,745,992,032,630,784
  5. Step 5: Solve for x
    x = 3,999,745,992,032,630,784/1,321,956,220
  6. Step 6: Final answer
    x = 3,025,626,667.15

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.