Home / 126,182,322.40-189,273,483.60-54,378,738.40

Finding the Fourth Proportional to 126,182,322.40, 189,273,483.60 and 54,378,738.40

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Solution

The fourth proportional to 126,182,322.40, 189,273,483.60 and 54,378,738.40 is: 81,568,107.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,182,322.40 : 189,273,483.60 = 54,378,738.40 : x
  2. Step 2: Convert to fraction form
    126,182,322.40/189,273,483.60 = 54,378,738.40/x
  3. Step 3: Cross multiply
    126,182,322.40x = 189,273,483.60 × 54,378,738.40
  4. Step 4: Simplify right side
    126,182,322.40x = 10,292,453,250,741,090
  5. Step 5: Solve for x
    x = 10,292,453,250,741,090/126,182,322.40
  6. Step 6: Final answer
    x = 81,568,107.60

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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.