Home / 129,410,119.20-194,115,178.80-100,499,728.80

Finding the Fourth Proportional to 129,410,119.20, 194,115,178.80 and 100,499,728.80

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Solution

The fourth proportional to 129,410,119.20, 194,115,178.80 and 100,499,728.80 is: 150,749,593.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,410,119.20 : 194,115,178.80 = 100,499,728.80 : x
  2. Step 2: Convert to fraction form
    129,410,119.20/194,115,178.80 = 100,499,728.80/x
  3. Step 3: Cross multiply
    129,410,119.20x = 194,115,178.80 × 100,499,728.80
  4. Step 4: Simplify right side
    129,410,119.20x = 19,508,522,825,363,512
  5. Step 5: Solve for x
    x = 19,508,522,825,363,512/129,410,119.20
  6. Step 6: Final answer
    x = 150,749,593.20

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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.