Home / 12,134,769.50-16,745,882.39-6,628,147.88

Finding the Fourth Proportional to 12,134,769.50, 16,745,882.39 and 6,628,147.88

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Solution

The fourth proportional to 12,134,769.50, 16,745,882.39 and 6,628,147.88 is: 9,146,789.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,134,769.50 : 16,745,882.39 = 6,628,147.88 : x
  2. Step 2: Convert to fraction form
    12,134,769.50/16,745,882.39 = 6,628,147.88/x
  3. Step 3: Cross multiply
    12,134,769.50x = 16,745,882.39 × 6,628,147.88
  4. Step 4: Simplify right side
    12,134,769.50x = 110,994,184,745,137.69
  5. Step 5: Solve for x
    x = 110,994,184,745,137.69/12,134,769.50
  6. Step 6: Final answer
    x = 9,146,789.71

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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.