Home / 12,072,142.24-16,659,469.20-6,639,517.60

Finding the Fourth Proportional to 12,072,142.24, 16,659,469.20 and 6,639,517.60

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Solution

The fourth proportional to 12,072,142.24, 16,659,469.20 and 6,639,517.60 is: 9,162,486.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,072,142.24 : 16,659,469.20 = 6,639,517.60 : x
  2. Step 2: Convert to fraction form
    12,072,142.24/16,659,469.20 = 6,639,517.60/x
  3. Step 3: Cross multiply
    12,072,142.24x = 16,659,469.20 × 6,639,517.60
  4. Step 4: Simplify right side
    12,072,142.24x = 110,610,838,960,057.91
  5. Step 5: Solve for x
    x = 110,610,838,960,057.91/12,072,142.24
  6. Step 6: Final answer
    x = 9,162,486.39

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1.5x scale

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.