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Finding the Third Proportional to 6,990,412.78 and 9,444,485.67

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Solution

The third proportional to 6,990,412.78 and 9,444,485.67 is: 12,760,091.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,990,412.78 : 9,444,485.67 = 9,444,485.67 : x
  2. Step 2: Convert to fraction form
    6,990,412.78/9,444,485.67 = 9,444,485.67/x
  3. Step 3: Cross multiply
    6,990,412.78x = 9,444,485.67 × 9,444,485.67
  4. Step 4: Simplify right side
    6,990,412.78x = 89,198,309,606,252.17
  5. Step 5: Solve for x
    x = 89,198,309,606,252.17/6,990,412.78
  6. Step 6: Final answer
    x = 12,760,091.91

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.