Home / 221,608,222.27-305,814,012.45-121,132,150.75

Finding the Fourth Proportional to 221,608,222.27, 305,814,012.45 and 121,132,150.75

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Solution

The fourth proportional to 221,608,222.27, 305,814,012.45 and 121,132,150.75 is: 167,159,452.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,608,222.27 : 305,814,012.45 = 121,132,150.75 : x
  2. Step 2: Convert to fraction form
    221,608,222.27/305,814,012.45 = 121,132,150.75/x
  3. Step 3: Cross multiply
    221,608,222.27x = 305,814,012.45 × 121,132,150.75
  4. Step 4: Simplify right side
    221,608,222.27x = 37,043,909,057,555,776
  5. Step 5: Solve for x
    x = 37,043,909,057,555,776/221,608,222.27
  6. Step 6: Final answer
    x = 167,159,452.29

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1.5x scale

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.