Home / 392,307,684.04-541,377,989.92-216,112,161.16

Finding the Fourth Proportional to 392,307,684.04, 541,377,989.92 and 216,112,161.16

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Solution

The fourth proportional to 392,307,684.04, 541,377,989.92 and 216,112,161.16 is: 298,231,138.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,307,684.04 : 541,377,989.92 = 216,112,161.16 : x
  2. Step 2: Convert to fraction form
    392,307,684.04/541,377,989.92 = 216,112,161.16/x
  3. Step 3: Cross multiply
    392,307,684.04x = 541,377,989.92 × 216,112,161.16
  4. Step 4: Simplify right side
    392,307,684.04x = 116,998,367,406,067,888
  5. Step 5: Solve for x
    x = 116,998,367,406,067,888/392,307,684.04
  6. Step 6: Final answer
    x = 298,231,138.89

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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.