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Finding the Third Proportional to 1,321,956,218 and 1,999,936,494

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Solution

The third proportional to 1,321,956,218 and 1,999,936,494 is: 3,025,626,662.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,956,218 : 1,999,936,494 = 1,999,936,494 : x
  2. Step 2: Convert to fraction form
    1,321,956,218/1,999,936,494 = 1,999,936,494/x
  3. Step 3: Cross multiply
    1,321,956,218x = 1,999,936,494 × 1,999,936,494
  4. Step 4: Simplify right side
    1,321,956,218x = 3,999,745,980,033,012,224
  5. Step 5: Solve for x
    x = 3,999,745,980,033,012,224/1,321,956,218
  6. Step 6: Final answer
    x = 3,025,626,662.65

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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.