Home / 813,843,846.40-1,220,840,419.20-268,586,579.20

Finding the Fourth Proportional to 813,843,846.40, 1,220,840,419.20 and 268,586,579.20

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Solution

The fourth proportional to 813,843,846.40, 1,220,840,419.20 and 268,586,579.20 is: 402,904,504.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,843,846.40 : 1,220,840,419.20 = 268,586,579.20 : x
  2. Step 2: Convert to fraction form
    813,843,846.40/1,220,840,419.20 = 268,586,579.20/x
  3. Step 3: Cross multiply
    813,843,846.40x = 1,220,840,419.20 × 268,586,579.20
  4. Step 4: Simplify right side
    813,843,846.40x = 327,901,351,942,022,016
  5. Step 5: Solve for x
    x = 327,901,351,942,022,016/813,843,846.40
  6. Step 6: Final answer
    x = 402,904,504.83

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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.