Home / 111,620,455.20-167,430,682.80-80,770,305.15

Finding the Fourth Proportional to 111,620,455.20, 167,430,682.80 and 80,770,305.15

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Solution

The fourth proportional to 111,620,455.20, 167,430,682.80 and 80,770,305.15 is: 121,155,457.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,620,455.20 : 167,430,682.80 = 80,770,305.15 : x
  2. Step 2: Convert to fraction form
    111,620,455.20/167,430,682.80 = 80,770,305.15/x
  3. Step 3: Cross multiply
    111,620,455.20x = 167,430,682.80 × 80,770,305.15
  4. Step 4: Simplify right side
    111,620,455.20x = 13,523,427,341,228,858
  5. Step 5: Solve for x
    x = 13,523,427,341,228,858/111,620,455.20
  6. Step 6: Final answer
    x = 121,155,457.73

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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.