Home / 8,611,845.42-12,908,896.20-3,821,790.54

Finding the Fourth Proportional to 8,611,845.42, 12,908,896.20 and 3,821,790.54

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Solution

The fourth proportional to 8,611,845.42, 12,908,896.20 and 3,821,790.54 is: 5,728,748.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,611,845.42 : 12,908,896.20 = 3,821,790.54 : x
  2. Step 2: Convert to fraction form
    8,611,845.42/12,908,896.20 = 3,821,790.54/x
  3. Step 3: Cross multiply
    8,611,845.42x = 12,908,896.20 × 3,821,790.54
  4. Step 4: Simplify right side
    8,611,845.42x = 49,335,097,379,001.95
  5. Step 5: Solve for x
    x = 49,335,097,379,001.95/8,611,845.42
  6. Step 6: Final answer
    x = 5,728,748.60

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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.