Home / 392,511,684.68-541,669,707.18-216,306,002.28

Finding the Fourth Proportional to 392,511,684.68, 541,669,707.18 and 216,306,002.28

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Solution

The fourth proportional to 392,511,684.68, 541,669,707.18 and 216,306,002.28 is: 298,504,257.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,511,684.68 : 541,669,707.18 = 216,306,002.28 : x
  2. Step 2: Convert to fraction form
    392,511,684.68/541,669,707.18 = 216,306,002.28/x
  3. Step 3: Cross multiply
    392,511,684.68x = 541,669,707.18 × 216,306,002.28
  4. Step 4: Simplify right side
    392,511,684.68x = 117,166,408,916,284,000
  5. Step 5: Solve for x
    x = 117,166,408,916,284,000/392,511,684.68
  6. Step 6: Final answer
    x = 298,504,257.30

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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.