Home / 126,370,643.20-189,555,964.80-117,867,587.20

Finding the Fourth Proportional to 126,370,643.20, 189,555,964.80 and 117,867,587.20

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Solution

The fourth proportional to 126,370,643.20, 189,555,964.80 and 117,867,587.20 is: 176,801,380.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,370,643.20 : 189,555,964.80 = 117,867,587.20 : x
  2. Step 2: Convert to fraction form
    126,370,643.20/189,555,964.80 = 117,867,587.20/x
  3. Step 3: Cross multiply
    126,370,643.20x = 189,555,964.80 × 117,867,587.20
  4. Step 4: Simplify right side
    126,370,643.20x = 22,342,504,210,344,132
  5. Step 5: Solve for x
    x = 22,342,504,210,344,132/126,370,643.20
  6. Step 6: Final answer
    x = 176,801,380.80

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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.