Home / 38,393,273.82-52,982,905.18-20,989,619.89

Finding the Fourth Proportional to 38,393,273.82, 52,982,905.18 and 20,989,619.89

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Solution

The fourth proportional to 38,393,273.82, 52,982,905.18 and 20,989,619.89 is: 28,965,777.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,393,273.82 : 52,982,905.18 = 20,989,619.89 : x
  2. Step 2: Convert to fraction form
    38,393,273.82/52,982,905.18 = 20,989,619.89/x
  3. Step 3: Cross multiply
    38,393,273.82x = 52,982,905.18 × 20,989,619.89
  4. Step 4: Simplify right side
    38,393,273.82x = 1,112,091,040,448,586
  5. Step 5: Solve for x
    x = 1,112,091,040,448,586/38,393,273.82
  6. Step 6: Final answer
    x = 28,965,777.85

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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.