Home / 111,620,512.20-167,430,768.30-80,770,362.15

Finding the Fourth Proportional to 111,620,512.20, 167,430,768.30 and 80,770,362.15

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Solution

The fourth proportional to 111,620,512.20, 167,430,768.30 and 80,770,362.15 is: 121,155,543.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,620,512.20 : 167,430,768.30 = 80,770,362.15 : x
  2. Step 2: Convert to fraction form
    111,620,512.20/167,430,768.30 = 80,770,362.15/x
  3. Step 3: Cross multiply
    111,620,512.20x = 167,430,768.30 × 80,770,362.15
  4. Step 4: Simplify right side
    111,620,512.20x = 13,523,443,790,643,742
  5. Step 5: Solve for x
    x = 13,523,443,790,643,742/111,620,512.20
  6. Step 6: Final answer
    x = 121,155,543.23

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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.