Home / 13,892,612.40-20,831,920.20-8,214,577.20

Finding the Fourth Proportional to 13,892,612.40, 20,831,920.20 and 8,214,577.20

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Solution

The fourth proportional to 13,892,612.40, 20,831,920.20 and 8,214,577.20 is: 12,317,727.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,892,612.40 : 20,831,920.20 = 8,214,577.20 : x
  2. Step 2: Convert to fraction form
    13,892,612.40/20,831,920.20 = 8,214,577.20/x
  3. Step 3: Cross multiply
    13,892,612.40x = 20,831,920.20 × 8,214,577.20
  4. Step 4: Simplify right side
    13,892,612.40x = 171,125,416,707,139.44
  5. Step 5: Solve for x
    x = 171,125,416,707,139.44/13,892,612.40
  6. Step 6: Final answer
    x = 12,317,727.71

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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.