Home / 392,472,858.84-541,588,141.52-216,250,992.64

Finding the Fourth Proportional to 392,472,858.84, 541,588,141.52 and 216,250,992.64

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Solution

The fourth proportional to 392,472,858.84, 541,588,141.52 and 216,250,992.64 is: 298,412,923.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,472,858.84 : 541,588,141.52 = 216,250,992.64 : x
  2. Step 2: Convert to fraction form
    392,472,858.84/541,588,141.52 = 216,250,992.64/x
  3. Step 3: Cross multiply
    392,472,858.84x = 541,588,141.52 × 216,250,992.64
  4. Step 4: Simplify right side
    392,472,858.84x = 117,118,973,205,752,784
  5. Step 5: Solve for x
    x = 117,118,973,205,752,784/392,472,858.84
  6. Step 6: Final answer
    x = 298,412,923.51

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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.