Home / 215,360,439.80-323,040,659.70-129,364,100.60

Finding the Fourth Proportional to 215,360,439.80, 323,040,659.70 and 129,364,100.60

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Solution

The fourth proportional to 215,360,439.80, 323,040,659.70 and 129,364,100.60 is: 194,046,150.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,360,439.80 : 323,040,659.70 = 129,364,100.60 : x
  2. Step 2: Convert to fraction form
    215,360,439.80/323,040,659.70 = 129,364,100.60/x
  3. Step 3: Cross multiply
    215,360,439.80x = 323,040,659.70 × 129,364,100.60
  4. Step 4: Simplify right side
    215,360,439.80x = 41,789,864,399,321,160
  5. Step 5: Solve for x
    x = 41,789,864,399,321,160/215,360,439.80
  6. Step 6: Final answer
    x = 194,046,150.90

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1.5x scale

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.