Home / 12,065,072.16-16,647,942.78-7,168,481.76

Finding the Fourth Proportional to 12,065,072.16, 16,647,942.78 and 7,168,481.76

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Solution

The fourth proportional to 12,065,072.16, 16,647,942.78 and 7,168,481.76 is: 9,891,401.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,065,072.16 : 16,647,942.78 = 7,168,481.76 : x
  2. Step 2: Convert to fraction form
    12,065,072.16/16,647,942.78 = 7,168,481.76/x
  3. Step 3: Cross multiply
    12,065,072.16x = 16,647,942.78 × 7,168,481.76
  4. Step 4: Simplify right side
    12,065,072.16x = 119,340,474,159,953.69
  5. Step 5: Solve for x
    x = 119,340,474,159,953.69/12,065,072.16
  6. Step 6: Final answer
    x = 9,891,401.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.