Home / 215,261,630.80-322,797,967.80-85,826,222.80

Finding the Fourth Proportional to 215,261,630.80, 322,797,967.80 and 85,826,222.80

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Solution

The fourth proportional to 215,261,630.80, 322,797,967.80 and 85,826,222.80 is: 128,701,665.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,261,630.80 : 322,797,967.80 = 85,826,222.80 : x
  2. Step 2: Convert to fraction form
    215,261,630.80/322,797,967.80 = 85,826,222.80/x
  3. Step 3: Cross multiply
    215,261,630.80x = 322,797,967.80 × 85,826,222.80
  4. Step 4: Simplify right side
    215,261,630.80x = 27,704,530,303,790,024
  5. Step 5: Solve for x
    x = 27,704,530,303,790,024/215,261,630.80
  6. Step 6: Final answer
    x = 128,701,665.04

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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.