Home / 8,143,390.17-12,215,077.34-2,078,121.94

Finding the Fourth Proportional to 8,143,390.17, 12,215,077.34 and 2,078,121.94

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Solution

The fourth proportional to 8,143,390.17, 12,215,077.34 and 2,078,121.94 is: 3,117,180.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,143,390.17 : 12,215,077.34 = 2,078,121.94 : x
  2. Step 2: Convert to fraction form
    8,143,390.17/12,215,077.34 = 2,078,121.94/x
  3. Step 3: Cross multiply
    8,143,390.17x = 12,215,077.34 × 2,078,121.94
  4. Step 4: Simplify right side
    8,143,390.17x = 25,384,420,178,122.54
  5. Step 5: Solve for x
    x = 25,384,420,178,122.54/8,143,390.17
  6. Step 6: Final answer
    x = 3,117,180.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.