Home / 392,642,480.60-541,846,491.06-216,433,418.60

Finding the Fourth Proportional to 392,642,480.60, 541,846,491.06 and 216,433,418.60

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Solution

The fourth proportional to 392,642,480.60, 541,846,491.06 and 216,433,418.60 is: 298,678,044.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,642,480.60 : 541,846,491.06 = 216,433,418.60 : x
  2. Step 2: Convert to fraction form
    392,642,480.60/541,846,491.06 = 216,433,418.60/x
  3. Step 3: Cross multiply
    392,642,480.60x = 541,846,491.06 × 216,433,418.60
  4. Step 4: Simplify right side
    392,642,480.60x = 117,273,688,416,530,128
  5. Step 5: Solve for x
    x = 117,273,688,416,530,128/392,642,480.60
  6. Step 6: Final answer
    x = 298,678,044.81

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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.