Home / 208,010,469.40-312,015,704.10-156,614,219.80

Finding the Fourth Proportional to 208,010,469.40, 312,015,704.10 and 156,614,219.80

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Solution

The fourth proportional to 208,010,469.40, 312,015,704.10 and 156,614,219.80 is: 234,921,329.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,010,469.40 : 312,015,704.10 = 156,614,219.80 : x
  2. Step 2: Convert to fraction form
    208,010,469.40/312,015,704.10 = 156,614,219.80/x
  3. Step 3: Cross multiply
    208,010,469.40x = 312,015,704.10 × 156,614,219.80
  4. Step 4: Simplify right side
    208,010,469.40x = 48,866,096,062,969,168
  5. Step 5: Solve for x
    x = 48,866,096,062,969,168/208,010,469.40
  6. Step 6: Final answer
    x = 234,921,329.70

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Similar ratio
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1.5x scale

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.