Home / 220,336,502.40-330,517,195.20-66,987,561.60

Finding the Fourth Proportional to 220,336,502.40, 330,517,195.20 and 66,987,561.60

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Solution

The fourth proportional to 220,336,502.40, 330,517,195.20 and 66,987,561.60 is: 100,485,124.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,336,502.40 : 330,517,195.20 = 66,987,561.60 : x
  2. Step 2: Convert to fraction form
    220,336,502.40/330,517,195.20 = 66,987,561.60/x
  3. Step 3: Cross multiply
    220,336,502.40x = 330,517,195.20 × 66,987,561.60
  4. Step 4: Simplify right side
    220,336,502.40x = 22,140,540,973,319,224
  5. Step 5: Solve for x
    x = 22,140,540,973,319,224/220,336,502.40
  6. Step 6: Final answer
    x = 100,485,124.94

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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.