Home / 20,231,272.10-30,336,410.55-7,445,195.30

Finding the Fourth Proportional to 20,231,272.10, 30,336,410.55 and 7,445,195.30

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Solution

The fourth proportional to 20,231,272.10, 30,336,410.55 and 7,445,195.30 is: 11,163,929.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,231,272.10 : 30,336,410.55 = 7,445,195.30 : x
  2. Step 2: Convert to fraction form
    20,231,272.10/30,336,410.55 = 7,445,195.30/x
  3. Step 3: Cross multiply
    20,231,272.10x = 30,336,410.55 × 7,445,195.30
  4. Step 4: Simplify right side
    20,231,272.10x = 225,860,501,245,730.41
  5. Step 5: Solve for x
    x = 225,860,501,245,730.41/20,231,272.10
  6. Step 6: Final answer
    x = 11,163,929.79

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1.5x scale

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.