Home / 38,178,610.72-57,276,886.16-12,619,620.96

Finding the Fourth Proportional to 38,178,610.72, 57,276,886.16 and 12,619,620.96

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Solution

The fourth proportional to 38,178,610.72, 57,276,886.16 and 12,619,620.96 is: 18,932,396.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,178,610.72 : 57,276,886.16 = 12,619,620.96 : x
  2. Step 2: Convert to fraction form
    38,178,610.72/57,276,886.16 = 12,619,620.96/x
  3. Step 3: Cross multiply
    38,178,610.72x = 57,276,886.16 × 12,619,620.96
  4. Step 4: Simplify right side
    38,178,610.72x = 722,812,593,108,269.88
  5. Step 5: Solve for x
    x = 722,812,593,108,269.88/38,178,610.72
  6. Step 6: Final answer
    x = 18,932,396.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.