Home / 126,024,163.20-189,036,244.80-30,286,051.20

Finding the Fourth Proportional to 126,024,163.20, 189,036,244.80 and 30,286,051.20

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Solution

The fourth proportional to 126,024,163.20, 189,036,244.80 and 30,286,051.20 is: 45,429,076.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,024,163.20 : 189,036,244.80 = 30,286,051.20 : x
  2. Step 2: Convert to fraction form
    126,024,163.20/189,036,244.80 = 30,286,051.20/x
  3. Step 3: Cross multiply
    126,024,163.20x = 189,036,244.80 × 30,286,051.20
  4. Step 4: Simplify right side
    126,024,163.20x = 5,725,161,388,668,534
  5. Step 5: Solve for x
    x = 5,725,161,388,668,534/126,024,163.20
  6. Step 6: Final answer
    x = 45,429,076.80

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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.