Home / 1,219,449,759.33-1,682,840,665.42-690,813,744.70

Finding the Fourth Proportional to 1,219,449,759.33, 1,682,840,665.42 and 690,813,744.70

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Solution

The fourth proportional to 1,219,449,759.33, 1,682,840,665.42 and 690,813,744.70 is: 953,322,966.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,449,759.33 : 1,682,840,665.42 = 690,813,744.70 : x
  2. Step 2: Convert to fraction form
    1,219,449,759.33/1,682,840,665.42 = 690,813,744.70/x
  3. Step 3: Cross multiply
    1,219,449,759.33x = 1,682,840,665.42 × 690,813,744.70
  4. Step 4: Simplify right side
    1,219,449,759.33x = 1,162,529,461,800,361,728
  5. Step 5: Solve for x
    x = 1,162,529,461,800,361,728/1,219,449,759.33
  6. Step 6: Final answer
    x = 953,322,966.29

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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.