Home / 126,029,268.20-189,043,902.30-100,520,100.20

Finding the Fourth Proportional to 126,029,268.20, 189,043,902.30 and 100,520,100.20

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Solution

The fourth proportional to 126,029,268.20, 189,043,902.30 and 100,520,100.20 is: 150,780,150.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,029,268.20 : 189,043,902.30 = 100,520,100.20 : x
  2. Step 2: Convert to fraction form
    126,029,268.20/189,043,902.30 = 100,520,100.20/x
  3. Step 3: Cross multiply
    126,029,268.20x = 189,043,902.30 × 100,520,100.20
  4. Step 4: Simplify right side
    126,029,268.20x = 19,002,712,001,395,012
  5. Step 5: Solve for x
    x = 19,002,712,001,395,012/126,029,268.20
  6. Step 6: Final answer
    x = 150,780,150.30

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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.