Home / 213,659,622.15-320,489,433.23-211,392,140.55

Finding the Fourth Proportional to 213,659,622.15, 320,489,433.23 and 211,392,140.55

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Solution

The fourth proportional to 213,659,622.15, 320,489,433.23 and 211,392,140.55 is: 317,088,210.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,659,622.15 : 320,489,433.23 = 211,392,140.55 : x
  2. Step 2: Convert to fraction form
    213,659,622.15/320,489,433.23 = 211,392,140.55/x
  3. Step 3: Cross multiply
    213,659,622.15x = 320,489,433.23 × 211,392,140.55
  4. Step 4: Simplify right side
    213,659,622.15x = 67,748,947,313,089,048
  5. Step 5: Solve for x
    x = 67,748,947,313,089,048/213,659,622.15
  6. Step 6: Final answer
    x = 317,088,210.83

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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.