Home / 312,906,232.80-469,527,310.80-131,171,781.60

Finding the Fourth Proportional to 312,906,232.80, 469,527,310.80 and 131,171,781.60

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Solution

The fourth proportional to 312,906,232.80, 469,527,310.80 and 131,171,781.60 is: 196,828,082.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,906,232.80 : 469,527,310.80 = 131,171,781.60 : x
  2. Step 2: Convert to fraction form
    312,906,232.80/469,527,310.80 = 131,171,781.60/x
  3. Step 3: Cross multiply
    312,906,232.80x = 469,527,310.80 × 131,171,781.60
  4. Step 4: Simplify right side
    312,906,232.80x = 61,588,733,867,492,920
  5. Step 5: Solve for x
    x = 61,588,733,867,492,920/312,906,232.80
  6. Step 6: Final answer
    x = 196,828,082.70

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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.