Home / 47,847,316.20-71,787,563.10-20,940,282.60

Finding the Fourth Proportional to 47,847,316.20, 71,787,563.10 and 20,940,282.60

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Solution

The fourth proportional to 47,847,316.20, 71,787,563.10 and 20,940,282.60 is: 31,417,683.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,847,316.20 : 71,787,563.10 = 20,940,282.60 : x
  2. Step 2: Convert to fraction form
    47,847,316.20/71,787,563.10 = 20,940,282.60/x
  3. Step 3: Cross multiply
    47,847,316.20x = 71,787,563.10 × 20,940,282.60
  4. Step 4: Simplify right side
    47,847,316.20x = 1,503,251,858,479,332
  5. Step 5: Solve for x
    x = 1,503,251,858,479,332/47,847,316.20
  6. Step 6: Final answer
    x = 31,417,683.96

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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.