Home / 389,836,001.25-538,000,076.31-220,231,414.82

Finding the Fourth Proportional to 389,836,001.25, 538,000,076.31 and 220,231,414.82

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Solution

The fourth proportional to 389,836,001.25, 538,000,076.31 and 220,231,414.82 is: 303,934,263.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,836,001.25 : 538,000,076.31 = 220,231,414.82 : x
  2. Step 2: Convert to fraction form
    389,836,001.25/538,000,076.31 = 220,231,414.82/x
  3. Step 3: Cross multiply
    389,836,001.25x = 538,000,076.31 × 220,231,414.82
  4. Step 4: Simplify right side
    389,836,001.25x = 118,484,517,976,329,248
  5. Step 5: Solve for x
    x = 118,484,517,976,329,248/389,836,001.25
  6. Step 6: Final answer
    x = 303,934,263.63

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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.