Home / 7,790,680.80-11,739,198.24-6,401,848.32

Finding the Fourth Proportional to 7,790,680.80, 11,739,198.24 and 6,401,848.32

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Solution

The fourth proportional to 7,790,680.80, 11,739,198.24 and 6,401,848.32 is: 9,646,469.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,790,680.80 : 11,739,198.24 = 6,401,848.32 : x
  2. Step 2: Convert to fraction form
    7,790,680.80/11,739,198.24 = 6,401,848.32/x
  3. Step 3: Cross multiply
    7,790,680.80x = 11,739,198.24 × 6,401,848.32
  4. Step 4: Simplify right side
    7,790,680.80x = 75,152,566,530,890.97
  5. Step 5: Solve for x
    x = 75,152,566,530,890.97/7,790,680.80
  6. Step 6: Final answer
    x = 9,646,469.73

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.