Home / 388,463,722.10-582,695,583.15-356,718,979.70

Finding the Fourth Proportional to 388,463,722.10, 582,695,583.15 and 356,718,979.70

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Solution

The fourth proportional to 388,463,722.10, 582,695,583.15 and 356,718,979.70 is: 535,078,469.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,463,722.10 : 582,695,583.15 = 356,718,979.70 : x
  2. Step 2: Convert to fraction form
    388,463,722.10/582,695,583.15 = 356,718,979.70/x
  3. Step 3: Cross multiply
    388,463,722.10x = 582,695,583.15 × 356,718,979.70
  4. Step 4: Simplify right side
    388,463,722.10x = 207,858,573,896,964,512
  5. Step 5: Solve for x
    x = 207,858,573,896,964,512/388,463,722.10
  6. Step 6: Final answer
    x = 535,078,469.55

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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.