Home / 311,365,500.12-429,693,358-172,145,229.96

Finding the Fourth Proportional to 311,365,500.12, 429,693,358 and 172,145,229.96

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Solution

The fourth proportional to 311,365,500.12, 429,693,358 and 172,145,229.96 is: 237,565,375.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,365,500.12 : 429,693,358 = 172,145,229.96 : x
  2. Step 2: Convert to fraction form
    311,365,500.12/429,693,358 = 172,145,229.96/x
  3. Step 3: Cross multiply
    311,365,500.12x = 429,693,358 × 172,145,229.96
  4. Step 4: Simplify right side
    311,365,500.12x = 73,969,661,925,194,608
  5. Step 5: Solve for x
    x = 73,969,661,925,194,608/311,365,500.12
  6. Step 6: Final answer
    x = 237,565,375.41

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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.