Home / 126,019,864.28-188,777,657.04-100,155,811.76

Finding the Fourth Proportional to 126,019,864.28, 188,777,657.04 and 100,155,811.76

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Solution

The fourth proportional to 126,019,864.28, 188,777,657.04 and 100,155,811.76 is: 150,033,326.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,019,864.28 : 188,777,657.04 = 100,155,811.76 : x
  2. Step 2: Convert to fraction form
    126,019,864.28/188,777,657.04 = 100,155,811.76/x
  3. Step 3: Cross multiply
    126,019,864.28x = 188,777,657.04 × 100,155,811.76
  4. Step 4: Simplify right side
    126,019,864.28x = 18,907,179,482,992,080
  5. Step 5: Solve for x
    x = 18,907,179,482,992,080/126,019,864.28
  6. Step 6: Final answer
    x = 150,033,326.82

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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.