Home / 5,181,853.76-7,150,970.88-2,890,162.88

Finding the Fourth Proportional to 5,181,853.76, 7,150,970.88 and 2,890,162.88

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Solution

The fourth proportional to 5,181,853.76, 7,150,970.88 and 2,890,162.88 is: 3,988,431.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,181,853.76 : 7,150,970.88 = 2,890,162.88 : x
  2. Step 2: Convert to fraction form
    5,181,853.76/7,150,970.88 = 2,890,162.88/x
  3. Step 3: Cross multiply
    5,181,853.76x = 7,150,970.88 × 2,890,162.88
  4. Step 4: Simplify right side
    5,181,853.76x = 20,667,470,593,336.93
  5. Step 5: Solve for x
    x = 20,667,470,593,336.93/5,181,853.76
  6. Step 6: Final answer
    x = 3,988,431.85

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1.5x scale

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.