Home / 305,271,902.88-421,236,964.08-206,367,844.32

Finding the Fourth Proportional to 305,271,902.88, 421,236,964.08 and 206,367,844.32

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Solution

The fourth proportional to 305,271,902.88, 421,236,964.08 and 206,367,844.32 is: 284,761,759.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,271,902.88 : 421,236,964.08 = 206,367,844.32 : x
  2. Step 2: Convert to fraction form
    305,271,902.88/421,236,964.08 = 206,367,844.32/x
  3. Step 3: Cross multiply
    305,271,902.88x = 421,236,964.08 × 206,367,844.32
  4. Step 4: Simplify right side
    305,271,902.88x = 86,929,764,225,090,864
  5. Step 5: Solve for x
    x = 86,929,764,225,090,864/305,271,902.88
  6. Step 6: Final answer
    x = 284,761,759.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.