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Finding the Third Proportional to 2,990,688.75 and 6,560,380.69

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Solution

The third proportional to 2,990,688.75 and 6,560,380.69 is: 14,390,863.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,990,688.75 : 6,560,380.69 = 6,560,380.69 : x
  2. Step 2: Convert to fraction form
    2,990,688.75/6,560,380.69 = 6,560,380.69/x
  3. Step 3: Cross multiply
    2,990,688.75x = 6,560,380.69 × 6,560,380.69
  4. Step 4: Simplify right side
    2,990,688.75x = 43,038,594,764,922.97
  5. Step 5: Solve for x
    x = 43,038,594,764,922.97/2,990,688.75
  6. Step 6: Final answer
    x = 14,390,863.90

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.