Home / 305,185,586.56-421,238,433.88-199,336,757.28

Finding the Fourth Proportional to 305,185,586.56, 421,238,433.88 and 199,336,757.28

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Solution

The fourth proportional to 305,185,586.56, 421,238,433.88 and 199,336,757.28 is: 275,138,496.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,185,586.56 : 421,238,433.88 = 199,336,757.28 : x
  2. Step 2: Convert to fraction form
    305,185,586.56/421,238,433.88 = 199,336,757.28/x
  3. Step 3: Cross multiply
    305,185,586.56x = 421,238,433.88 × 199,336,757.28
  4. Step 4: Simplify right side
    305,185,586.56x = 83,968,303,451,344,896
  5. Step 5: Solve for x
    x = 83,968,303,451,344,896/305,185,586.56
  6. Step 6: Final answer
    x = 275,138,496.54

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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.