Home / 20,860,197.60-31,227,310.80-18,340,773.60

Finding the Fourth Proportional to 20,860,197.60, 31,227,310.80 and 18,340,773.60

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Solution

The fourth proportional to 20,860,197.60, 31,227,310.80 and 18,340,773.60 is: 27,455,781.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,860,197.60 : 31,227,310.80 = 18,340,773.60 : x
  2. Step 2: Convert to fraction form
    20,860,197.60/31,227,310.80 = 18,340,773.60/x
  3. Step 3: Cross multiply
    20,860,197.60x = 31,227,310.80 × 18,340,773.60
  4. Step 4: Simplify right side
    20,860,197.60x = 572,733,037,519,635
  5. Step 5: Solve for x
    x = 572,733,037,519,635/20,860,197.60
  6. Step 6: Final answer
    x = 27,455,781.99

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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.