Home / 392,579,789.21-541,781,414.24-225,314,713.18

Finding the Fourth Proportional to 392,579,789.21, 541,781,414.24 and 225,314,713.18

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Solution

The fourth proportional to 392,579,789.21, 541,781,414.24 and 225,314,713.18 is: 310,946,531.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,579,789.21 : 541,781,414.24 = 225,314,713.18 : x
  2. Step 2: Convert to fraction form
    392,579,789.21/541,781,414.24 = 225,314,713.18/x
  3. Step 3: Cross multiply
    392,579,789.21x = 541,781,414.24 × 225,314,713.18
  4. Step 4: Simplify right side
    392,579,789.21x = 122,071,323,952,240,784
  5. Step 5: Solve for x
    x = 122,071,323,952,240,784/392,579,789.21
  6. Step 6: Final answer
    x = 310,946,531.91

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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.