Home / 392,476,668.92-541,629,356.42-216,276,014.52

Finding the Fourth Proportional to 392,476,668.92, 541,629,356.42 and 216,276,014.52

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Solution

The fourth proportional to 392,476,668.92, 541,629,356.42 and 216,276,014.52 is: 298,467,266.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,476,668.92 : 541,629,356.42 = 216,276,014.52 : x
  2. Step 2: Convert to fraction form
    392,476,668.92/541,629,356.42 = 216,276,014.52/x
  3. Step 3: Cross multiply
    392,476,668.92x = 541,629,356.42 × 216,276,014.52
  4. Step 4: Simplify right side
    392,476,668.92x = 117,141,438,553,550,176
  5. Step 5: Solve for x
    x = 117,141,438,553,550,176/392,476,668.92
  6. Step 6: Final answer
    x = 298,467,266.54

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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.