Home / 305,979,919.20-422,239,975.20-166,747,674.60

Finding the Fourth Proportional to 305,979,919.20, 422,239,975.20 and 166,747,674.60

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Solution

The fourth proportional to 305,979,919.20, 422,239,975.20 and 166,747,674.60 is: 230,105,080.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,979,919.20 : 422,239,975.20 = 166,747,674.60 : x
  2. Step 2: Convert to fraction form
    305,979,919.20/422,239,975.20 = 166,747,674.60/x
  3. Step 3: Cross multiply
    305,979,919.20x = 422,239,975.20 × 166,747,674.60
  4. Step 4: Simplify right side
    305,979,919.20x = 70,407,533,987,761,664
  5. Step 5: Solve for x
    x = 70,407,533,987,761,664/305,979,919.20
  6. Step 6: Final answer
    x = 230,105,080.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.