Home / 3,921,060.78-5,410,826.67-2,178,670.59

Finding the Fourth Proportional to 3,921,060.78, 5,410,826.67 and 2,178,670.59

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Solution

The fourth proportional to 3,921,060.78, 5,410,826.67 and 2,178,670.59 is: 3,006,433.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,921,060.78 : 5,410,826.67 = 2,178,670.59 : x
  2. Step 2: Convert to fraction form
    3,921,060.78/5,410,826.67 = 2,178,670.59/x
  3. Step 3: Cross multiply
    3,921,060.78x = 5,410,826.67 × 2,178,670.59
  4. Step 4: Simplify right side
    3,921,060.78x = 11,788,408,933,516.63
  5. Step 5: Solve for x
    x = 11,788,408,933,516.63/3,921,060.78
  6. Step 6: Final answer
    x = 3,006,433.61

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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.