Home / 13,892,613.40-20,831,921.70-8,214,578.20

Finding the Fourth Proportional to 13,892,613.40, 20,831,921.70 and 8,214,578.20

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Solution

The fourth proportional to 13,892,613.40, 20,831,921.70 and 8,214,578.20 is: 12,317,729.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,892,613.40 : 20,831,921.70 = 8,214,578.20 : x
  2. Step 2: Convert to fraction form
    13,892,613.40/20,831,921.70 = 8,214,578.20/x
  3. Step 3: Cross multiply
    13,892,613.40x = 20,831,921.70 × 8,214,578.20
  4. Step 4: Simplify right side
    13,892,613.40x = 171,125,449,860,926.94
  5. Step 5: Solve for x
    x = 171,125,449,860,926.94/13,892,613.40
  6. Step 6: Final answer
    x = 12,317,729.21

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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.