Home / 38,393,274.32-52,982,905.88-20,989,620.39

Finding the Fourth Proportional to 38,393,274.32, 52,982,905.88 and 20,989,620.39

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Solution

The fourth proportional to 38,393,274.32, 52,982,905.88 and 20,989,620.39 is: 28,965,778.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,393,274.32 : 52,982,905.88 = 20,989,620.39 : x
  2. Step 2: Convert to fraction form
    38,393,274.32/52,982,905.88 = 20,989,620.39/x
  3. Step 3: Cross multiply
    38,393,274.32x = 52,982,905.88 × 20,989,620.39
  4. Step 4: Simplify right side
    38,393,274.32x = 1,112,091,081,475,350.88
  5. Step 5: Solve for x
    x = 1,112,091,081,475,350.88/38,393,274.32
  6. Step 6: Final answer
    x = 28,965,778.55

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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.