Home / 260,728,844.10-391,140,505.35-131,010,000.90

Finding the Fourth Proportional to 260,728,844.10, 391,140,505.35 and 131,010,000.90

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Solution

The fourth proportional to 260,728,844.10, 391,140,505.35 and 131,010,000.90 is: 196,538,737.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,728,844.10 : 391,140,505.35 = 131,010,000.90 : x
  2. Step 2: Convert to fraction form
    260,728,844.10/391,140,505.35 = 131,010,000.90/x
  3. Step 3: Cross multiply
    260,728,844.10x = 391,140,505.35 × 131,010,000.90
  4. Step 4: Simplify right side
    260,728,844.10x = 51,243,317,957,929,960
  5. Step 5: Solve for x
    x = 51,243,317,957,929,960/260,728,844.10
  6. Step 6: Final answer
    x = 196,538,737.92

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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.