Home / 388,463,104.80-582,620,007.60-115,842,765.60

Finding the Fourth Proportional to 388,463,104.80, 582,620,007.60 and 115,842,765.60

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Solution

The fourth proportional to 388,463,104.80, 582,620,007.60 and 115,842,765.60 is: 173,741,887.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,463,104.80 : 582,620,007.60 = 115,842,765.60 : x
  2. Step 2: Convert to fraction form
    388,463,104.80/582,620,007.60 = 115,842,765.60/x
  3. Step 3: Cross multiply
    388,463,104.80x = 582,620,007.60 × 115,842,765.60
  4. Step 4: Simplify right side
    388,463,104.80x = 67,492,312,974,277,016
  5. Step 5: Solve for x
    x = 67,492,312,974,277,016/388,463,104.80
  6. Step 6: Final answer
    x = 173,741,887.30

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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.