Home / 12,143,951.20-18,215,926.80-3,168,503.20

Finding the Fourth Proportional to 12,143,951.20, 18,215,926.80 and 3,168,503.20

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Solution

The fourth proportional to 12,143,951.20, 18,215,926.80 and 3,168,503.20 is: 4,752,754.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,143,951.20 : 18,215,926.80 = 3,168,503.20 : x
  2. Step 2: Convert to fraction form
    12,143,951.20/18,215,926.80 = 3,168,503.20/x
  3. Step 3: Cross multiply
    12,143,951.20x = 18,215,926.80 × 3,168,503.20
  4. Step 4: Simplify right side
    12,143,951.20x = 57,717,222,356,765.77
  5. Step 5: Solve for x
    x = 57,717,222,356,765.77/12,143,951.20
  6. Step 6: Final answer
    x = 4,752,754.80

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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.