Home / 218,789,684.88-302,022,731.88-136,324,213.44

Finding the Fourth Proportional to 218,789,684.88, 302,022,731.88 and 136,324,213.44

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Solution

The fourth proportional to 218,789,684.88, 302,022,731.88 and 136,324,213.44 is: 188,185,340.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,789,684.88 : 302,022,731.88 = 136,324,213.44 : x
  2. Step 2: Convert to fraction form
    218,789,684.88/302,022,731.88 = 136,324,213.44/x
  3. Step 3: Cross multiply
    218,789,684.88x = 302,022,731.88 × 136,324,213.44
  4. Step 4: Simplify right side
    218,789,684.88x = 41,173,011,364,541,008
  5. Step 5: Solve for x
    x = 41,173,011,364,541,008/218,789,684.88
  6. Step 6: Final answer
    x = 188,185,340.58

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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.