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Finding the Third Proportional to 5,640,738.75 and 8,719,862.63

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Solution

The third proportional to 5,640,738.75 and 8,719,862.63 is: 13,479,795.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,640,738.75 : 8,719,862.63 = 8,719,862.63 : x
  2. Step 2: Convert to fraction form
    5,640,738.75/8,719,862.63 = 8,719,862.63/x
  3. Step 3: Cross multiply
    5,640,738.75x = 8,719,862.63 × 8,719,862.63
  4. Step 4: Simplify right side
    5,640,738.75x = 76,036,004,198,871.89
  5. Step 5: Solve for x
    x = 76,036,004,198,871.89/5,640,738.75
  6. Step 6: Final answer
    x = 13,479,795.39

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These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.