Home / 126,029,203.20-189,043,804.80-100,520,035.20

Finding the Fourth Proportional to 126,029,203.20, 189,043,804.80 and 100,520,035.20

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Solution

The fourth proportional to 126,029,203.20, 189,043,804.80 and 100,520,035.20 is: 150,780,052.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,029,203.20 : 189,043,804.80 = 100,520,035.20 : x
  2. Step 2: Convert to fraction form
    126,029,203.20/189,043,804.80 = 100,520,035.20/x
  3. Step 3: Cross multiply
    126,029,203.20x = 189,043,804.80 × 100,520,035.20
  4. Step 4: Simplify right side
    126,029,203.20x = 19,002,689,912,837,932
  5. Step 5: Solve for x
    x = 19,002,689,912,837,932/126,029,203.20
  6. Step 6: Final answer
    x = 150,780,052.80

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1.5x scale

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.