Home / 839,810,081.20-1,259,715,121.80-494,586,007.60

Finding the Fourth Proportional to 839,810,081.20, 1,259,715,121.80 and 494,586,007.60

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Solution

The fourth proportional to 839,810,081.20, 1,259,715,121.80 and 494,586,007.60 is: 741,879,011.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,810,081.20 : 1,259,715,121.80 = 494,586,007.60 : x
  2. Step 2: Convert to fraction form
    839,810,081.20/1,259,715,121.80 = 494,586,007.60/x
  3. Step 3: Cross multiply
    839,810,081.20x = 1,259,715,121.80 × 494,586,007.60
  4. Step 4: Simplify right side
    839,810,081.20x = 623,037,472,804,409,728
  5. Step 5: Solve for x
    x = 623,037,472,804,409,728/839,810,081.20
  6. Step 6: Final answer
    x = 741,879,011.40

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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.