Home / 5,190,246.39-7,162,600.18-2,867,090.78

Finding the Fourth Proportional to 5,190,246.39, 7,162,600.18 and 2,867,090.78

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Solution

The fourth proportional to 5,190,246.39, 7,162,600.18 and 2,867,090.78 is: 3,956,618.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,190,246.39 : 7,162,600.18 = 2,867,090.78 : x
  2. Step 2: Convert to fraction form
    5,190,246.39/7,162,600.18 = 2,867,090.78/x
  3. Step 3: Cross multiply
    5,190,246.39x = 7,162,600.18 × 2,867,090.78
  4. Step 4: Simplify right side
    5,190,246.39x = 20,535,824,940,923.23
  5. Step 5: Solve for x
    x = 20,535,824,940,923.23/5,190,246.39
  6. Step 6: Final answer
    x = 3,956,618.51

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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.