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Finding the Third Proportional to 1,661,012,413 and 3,920,978,579

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Solution

The third proportional to 1,661,012,413 and 3,920,978,579 is: 9,255,844,746.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,661,012,413 : 3,920,978,579 = 3,920,978,579 : x
  2. Step 2: Convert to fraction form
    1,661,012,413/3,920,978,579 = 3,920,978,579/x
  3. Step 3: Cross multiply
    1,661,012,413x = 3,920,978,579 × 3,920,978,579
  4. Step 4: Simplify right side
    1,661,012,413x = 15,374,073,016,976,859,136
  5. Step 5: Solve for x
    x = 15,374,073,016,976,859,136/1,661,012,413
  6. Step 6: Final answer
    x = 9,255,844,746.64

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These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.