Home / 193,985,331.50-268,049,930.18-138,133,787.43

Finding the Fourth Proportional to 193,985,331.50, 268,049,930.18 and 138,133,787.43

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Solution

The fourth proportional to 193,985,331.50, 268,049,930.18 and 138,133,787.43 is: 190,873,978.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,985,331.50 : 268,049,930.18 = 138,133,787.43 : x
  2. Step 2: Convert to fraction form
    193,985,331.50/268,049,930.18 = 138,133,787.43/x
  3. Step 3: Cross multiply
    193,985,331.50x = 268,049,930.18 × 138,133,787.43
  4. Step 4: Simplify right side
    193,985,331.50x = 37,026,752,078,068,352
  5. Step 5: Solve for x
    x = 37,026,752,078,068,352/193,985,331.50
  6. Step 6: Final answer
    x = 190,873,978.93

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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.