Home / 392,642,480.10-541,846,490.37-216,433,418.10

Finding the Fourth Proportional to 392,642,480.10, 541,846,490.37 and 216,433,418.10

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Solution

The fourth proportional to 392,642,480.10, 541,846,490.37 and 216,433,418.10 is: 298,678,044.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,642,480.10 : 541,846,490.37 = 216,433,418.10 : x
  2. Step 2: Convert to fraction form
    392,642,480.10/541,846,490.37 = 216,433,418.10/x
  3. Step 3: Cross multiply
    392,642,480.10x = 541,846,490.37 × 216,433,418.10
  4. Step 4: Simplify right side
    392,642,480.10x = 117,273,687,996,267,824
  5. Step 5: Solve for x
    x = 117,273,687,996,267,824/392,642,480.10
  6. Step 6: Final answer
    x = 298,678,044.12

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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.