Home / 5,134,350.76-7,085,405.77-2,811,390.20

Finding the Fourth Proportional to 5,134,350.76, 7,085,405.77 and 2,811,390.20

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Solution

The fourth proportional to 5,134,350.76, 7,085,405.77 and 2,811,390.20 is: 3,879,719.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,134,350.76 : 7,085,405.77 = 2,811,390.20 : x
  2. Step 2: Convert to fraction form
    5,134,350.76/7,085,405.77 = 2,811,390.20/x
  3. Step 3: Cross multiply
    5,134,350.76x = 7,085,405.77 × 2,811,390.20
  4. Step 4: Simplify right side
    5,134,350.76x = 19,919,840,344,801.45
  5. Step 5: Solve for x
    x = 19,919,840,344,801.45/5,134,350.76
  6. Step 6: Final answer
    x = 3,879,719.42

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Double scale
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Similar ratio
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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.