Home / 392,509,867.06-541,667,198.72-216,304,184.66

Finding the Fourth Proportional to 392,509,867.06, 541,667,198.72 and 216,304,184.66

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Solution

The fourth proportional to 392,509,867.06, 541,667,198.72 and 216,304,184.66 is: 298,501,748.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,509,867.06 : 541,667,198.72 = 216,304,184.66 : x
  2. Step 2: Convert to fraction form
    392,509,867.06/541,667,198.72 = 216,304,184.66/x
  3. Step 3: Cross multiply
    392,509,867.06x = 541,667,198.72 × 216,304,184.66
  4. Step 4: Simplify right side
    392,509,867.06x = 117,164,881,775,114,272
  5. Step 5: Solve for x
    x = 117,164,881,775,114,272/392,509,867.06
  6. Step 6: Final answer
    x = 298,501,748.90

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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.