Home / 388,186,808.58-582,085,501.83-129,311,015.94

Finding the Fourth Proportional to 388,186,808.58, 582,085,501.83 and 129,311,015.94

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Solution

The fourth proportional to 388,186,808.58, 582,085,501.83 and 129,311,015.94 is: 193,901,662.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,186,808.58 : 582,085,501.83 = 129,311,015.94 : x
  2. Step 2: Convert to fraction form
    388,186,808.58/582,085,501.83 = 129,311,015.94/x
  3. Step 3: Cross multiply
    388,186,808.58x = 582,085,501.83 × 129,311,015.94
  4. Step 4: Simplify right side
    388,186,808.58x = 75,270,067,605,582,032
  5. Step 5: Solve for x
    x = 75,270,067,605,582,032/388,186,808.58
  6. Step 6: Final answer
    x = 193,901,662.66

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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.