Home / 12,078,380.20-16,667,858.82-6,571,520.68

Finding the Fourth Proportional to 12,078,380.20, 16,667,858.82 and 6,571,520.68

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Solution

The fourth proportional to 12,078,380.20, 16,667,858.82 and 6,571,520.68 is: 9,068,532.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,078,380.20 : 16,667,858.82 = 6,571,520.68 : x
  2. Step 2: Convert to fraction form
    12,078,380.20/16,667,858.82 = 6,571,520.68/x
  3. Step 3: Cross multiply
    12,078,380.20x = 16,667,858.82 × 6,571,520.68
  4. Step 4: Simplify right side
    12,078,380.20x = 109,533,178,926,950.39
  5. Step 5: Solve for x
    x = 109,533,178,926,950.39/12,078,380.20
  6. Step 6: Final answer
    x = 9,068,532.13

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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.