Home / 215,261,629.80-322,797,966.30-85,826,221.80

Finding the Fourth Proportional to 215,261,629.80, 322,797,966.30 and 85,826,221.80

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Solution

The fourth proportional to 215,261,629.80, 322,797,966.30 and 85,826,221.80 is: 128,701,663.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,261,629.80 : 322,797,966.30 = 85,826,221.80 : x
  2. Step 2: Convert to fraction form
    215,261,629.80/322,797,966.30 = 85,826,221.80/x
  3. Step 3: Cross multiply
    215,261,629.80x = 322,797,966.30 × 85,826,221.80
  4. Step 4: Simplify right side
    215,261,629.80x = 27,704,529,852,252,724
  5. Step 5: Solve for x
    x = 27,704,529,852,252,724/215,261,629.80
  6. Step 6: Final answer
    x = 128,701,663.54

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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.