Home / 820,385,537.40-1,230,580,308.60-206,969,770.44

Finding the Fourth Proportional to 820,385,537.40, 1,230,580,308.60 and 206,969,770.44

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Solution

The fourth proportional to 820,385,537.40, 1,230,580,308.60 and 206,969,770.44 is: 310,455,160.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,385,537.40 : 1,230,580,308.60 = 206,969,770.44 : x
  2. Step 2: Convert to fraction form
    820,385,537.40/1,230,580,308.60 = 206,969,770.44/x
  3. Step 3: Cross multiply
    820,385,537.40x = 1,230,580,308.60 × 206,969,770.44
  4. Step 4: Simplify right side
    820,385,537.40x = 254,692,923,978,926,336
  5. Step 5: Solve for x
    x = 254,692,923,978,926,336/820,385,537.40
  6. Step 6: Final answer
    x = 310,455,160.86

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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.