Home / 221,608,221.27-305,814,011.07-121,132,149.75

Finding the Fourth Proportional to 221,608,221.27, 305,814,011.07 and 121,132,149.75

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Solution

The fourth proportional to 221,608,221.27, 305,814,011.07 and 121,132,149.75 is: 167,159,450.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,608,221.27 : 305,814,011.07 = 121,132,149.75 : x
  2. Step 2: Convert to fraction form
    221,608,221.27/305,814,011.07 = 121,132,149.75/x
  3. Step 3: Cross multiply
    221,608,221.27x = 305,814,011.07 × 121,132,149.75
  4. Step 4: Simplify right side
    221,608,221.27x = 37,043,908,584,579,400
  5. Step 5: Solve for x
    x = 37,043,908,584,579,400/221,608,221.27
  6. Step 6: Final answer
    x = 167,159,450.91

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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.