Home / 388,467,515.10-582,701,272.65-356,722,772.70

Finding the Fourth Proportional to 388,467,515.10, 582,701,272.65 and 356,722,772.70

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Solution

The fourth proportional to 388,467,515.10, 582,701,272.65 and 356,722,772.70 is: 535,084,159.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,467,515.10 : 582,701,272.65 = 356,722,772.70 : x
  2. Step 2: Convert to fraction form
    388,467,515.10/582,701,272.65 = 356,722,772.70/x
  3. Step 3: Cross multiply
    388,467,515.10x = 582,701,272.65 × 356,722,772.70
  4. Step 4: Simplify right side
    388,467,515.10x = 207,862,813,635,526,656
  5. Step 5: Solve for x
    x = 207,862,813,635,526,656/388,467,515.10
  6. Step 6: Final answer
    x = 535,084,159.05

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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.