Home / 392,509,839.37-541,667,160.63-216,304,156.96

Finding the Fourth Proportional to 392,509,839.37, 541,667,160.63 and 216,304,156.96

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Solution

The fourth proportional to 392,509,839.37, 541,667,160.63 and 216,304,156.96 is: 298,501,710.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,509,839.37 : 541,667,160.63 = 216,304,156.96 : x
  2. Step 2: Convert to fraction form
    392,509,839.37/541,667,160.63 = 216,304,156.96/x
  3. Step 3: Cross multiply
    392,509,839.37x = 541,667,160.63 × 216,304,156.96
  4. Step 4: Simplify right side
    392,509,839.37x = 117,164,858,532,989,056
  5. Step 5: Solve for x
    x = 117,164,858,532,989,056/392,509,839.37
  6. Step 6: Final answer
    x = 298,501,710.74

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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.