Home / 800,416,439.70-1,104,322,892.13-447,936,424.98

Finding the Fourth Proportional to 800,416,439.70, 1,104,322,892.13 and 447,936,424.98

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Solution

The fourth proportional to 800,416,439.70, 1,104,322,892.13 and 447,936,424.98 is: 618,011,354.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,416,439.70 : 1,104,322,892.13 = 447,936,424.98 : x
  2. Step 2: Convert to fraction form
    800,416,439.70/1,104,322,892.13 = 447,936,424.98/x
  3. Step 3: Cross multiply
    800,416,439.70x = 1,104,322,892.13 × 447,936,424.98
  4. Step 4: Simplify right side
    800,416,439.70x = 494,666,448,324,286,464
  5. Step 5: Solve for x
    x = 494,666,448,324,286,464/800,416,439.70
  6. Step 6: Final answer
    x = 618,011,354.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.