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Finding the Third Proportional to 4,012,485.75 and 8,679,431.25

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Solution

The third proportional to 4,012,485.75 and 8,679,431.25 is: 18,774,528.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,012,485.75 : 8,679,431.25 = 8,679,431.25 : x
  2. Step 2: Convert to fraction form
    4,012,485.75/8,679,431.25 = 8,679,431.25/x
  3. Step 3: Cross multiply
    4,012,485.75x = 8,679,431.25 × 8,679,431.25
  4. Step 4: Simplify right side
    4,012,485.75x = 75,332,526,823,476.56
  5. Step 5: Solve for x
    x = 75,332,526,823,476.56/4,012,485.75
  6. Step 6: Final answer
    x = 18,774,528.19

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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.