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Finding the Third Proportional to 1,931,873,220 and 4,169,647,368

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Solution

The third proportional to 1,931,873,220 and 4,169,647,368 is: 8,999,534,231.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,931,873,220 : 4,169,647,368 = 4,169,647,368 : x
  2. Step 2: Convert to fraction form
    1,931,873,220/4,169,647,368 = 4,169,647,368/x
  3. Step 3: Cross multiply
    1,931,873,220x = 4,169,647,368 × 4,169,647,368
  4. Step 4: Simplify right side
    1,931,873,220x = 17,385,959,173,469,327,360
  5. Step 5: Solve for x
    x = 17,385,959,173,469,327,360/1,931,873,220
  6. Step 6: Final answer
    x = 8,999,534,231.07

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.