Home / 388,092,190.80-582,147,617.40-115,471,851.60

Finding the Fourth Proportional to 388,092,190.80, 582,147,617.40 and 115,471,851.60

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Solution

The fourth proportional to 388,092,190.80, 582,147,617.40 and 115,471,851.60 is: 173,210,553.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,092,190.80 : 582,147,617.40 = 115,471,851.60 : x
  2. Step 2: Convert to fraction form
    388,092,190.80/582,147,617.40 = 115,471,851.60/x
  3. Step 3: Cross multiply
    388,092,190.80x = 582,147,617.40 × 115,471,851.60
  4. Step 4: Simplify right side
    388,092,190.80x = 67,221,663,285,706,368
  5. Step 5: Solve for x
    x = 67,221,663,285,706,368/388,092,190.80
  6. Step 6: Final answer
    x = 173,210,553.78

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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.