Home / 126,587,078.20-189,880,617.30-121,485,244.60

Finding the Fourth Proportional to 126,587,078.20, 189,880,617.30 and 121,485,244.60

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Solution

The fourth proportional to 126,587,078.20, 189,880,617.30 and 121,485,244.60 is: 182,227,866.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,587,078.20 : 189,880,617.30 = 121,485,244.60 : x
  2. Step 2: Convert to fraction form
    126,587,078.20/189,880,617.30 = 121,485,244.60/x
  3. Step 3: Cross multiply
    126,587,078.20x = 189,880,617.30 × 121,485,244.60
  4. Step 4: Simplify right side
    126,587,078.20x = 23,067,693,237,489,492
  5. Step 5: Solve for x
    x = 23,067,693,237,489,492/126,587,078.20
  6. Step 6: Final answer
    x = 182,227,866.90

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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.