Home / 1,219,449,765.87-1,682,840,674.44-690,813,751.23

Finding the Fourth Proportional to 1,219,449,765.87, 1,682,840,674.44 and 690,813,751.23

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Solution

The fourth proportional to 1,219,449,765.87, 1,682,840,674.44 and 690,813,751.23 is: 953,322,975.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,449,765.87 : 1,682,840,674.44 = 690,813,751.23 : x
  2. Step 2: Convert to fraction form
    1,219,449,765.87/1,682,840,674.44 = 690,813,751.23/x
  3. Step 3: Cross multiply
    1,219,449,765.87x = 1,682,840,674.44 × 690,813,751.23
  4. Step 4: Simplify right side
    1,219,449,765.87x = 1,162,529,479,032,319,744
  5. Step 5: Solve for x
    x = 1,162,529,479,032,319,744/1,219,449,765.87
  6. Step 6: Final answer
    x = 953,322,975.30

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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.