Home / 1,219,449,755.72-1,682,840,660.45-690,813,741.11

Finding the Fourth Proportional to 1,219,449,755.72, 1,682,840,660.45 and 690,813,741.11

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Solution

The fourth proportional to 1,219,449,755.72, 1,682,840,660.45 and 690,813,741.11 is: 953,322,961.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,449,755.72 : 1,682,840,660.45 = 690,813,741.11 : x
  2. Step 2: Convert to fraction form
    1,219,449,755.72/1,682,840,660.45 = 690,813,741.11/x
  3. Step 3: Cross multiply
    1,219,449,755.72x = 1,682,840,660.45 × 690,813,741.11
  4. Step 4: Simplify right side
    1,219,449,755.72x = 1,162,529,452,325,619,456
  5. Step 5: Solve for x
    x = 1,162,529,452,325,619,456/1,219,449,755.72
  6. Step 6: Final answer
    x = 953,322,961.34

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Double scale
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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.