Home / 20,684,906.80-31,027,360.20-18,452,854.60

Finding the Fourth Proportional to 20,684,906.80, 31,027,360.20 and 18,452,854.60

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Solution

The fourth proportional to 20,684,906.80, 31,027,360.20 and 18,452,854.60 is: 27,679,281.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,684,906.80 : 31,027,360.20 = 18,452,854.60 : x
  2. Step 2: Convert to fraction form
    20,684,906.80/31,027,360.20 = 18,452,854.60/x
  3. Step 3: Cross multiply
    20,684,906.80x = 31,027,360.20 × 18,452,854.60
  4. Step 4: Simplify right side
    20,684,906.80x = 572,543,366,392,427
  5. Step 5: Solve for x
    x = 572,543,366,392,427/20,684,906.80
  6. Step 6: Final answer
    x = 27,679,281.90

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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.