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Finding the Third Proportional to 2,099,389,921 and 4,510,334,979

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Solution

The third proportional to 2,099,389,921 and 4,510,334,979 is: 9,690,015,856.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,099,389,921 : 4,510,334,979 = 4,510,334,979 : x
  2. Step 2: Convert to fraction form
    2,099,389,921/4,510,334,979 = 4,510,334,979/x
  3. Step 3: Cross multiply
    2,099,389,921x = 4,510,334,979 × 4,510,334,979
  4. Step 4: Simplify right side
    2,099,389,921x = 20,343,121,622,790,930,432
  5. Step 5: Solve for x
    x = 20,343,121,622,790,930,432/2,099,389,921
  6. Step 6: Final answer
    x = 9,690,015,856.18

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.