Home / 720,569,863.98-1,080,466,297.29-388,754,724.78

Finding the Fourth Proportional to 720,569,863.98, 1,080,466,297.29 and 388,754,724.78

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Solution

The fourth proportional to 720,569,863.98, 1,080,466,297.29 and 388,754,724.78 is: 582,922,488.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,569,863.98 : 1,080,466,297.29 = 388,754,724.78 : x
  2. Step 2: Convert to fraction form
    720,569,863.98/1,080,466,297.29 = 388,754,724.78/x
  3. Step 3: Cross multiply
    720,569,863.98x = 1,080,466,297.29 × 388,754,724.78
  4. Step 4: Simplify right side
    720,569,863.98x = 420,036,378,037,039,552
  5. Step 5: Solve for x
    x = 420,036,378,037,039,552/720,569,863.98
  6. Step 6: Final answer
    x = 582,922,488.21

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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.