Home / 126,587,077.20-189,880,615.80-121,485,243.60

Finding the Fourth Proportional to 126,587,077.20, 189,880,615.80 and 121,485,243.60

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Solution

The fourth proportional to 126,587,077.20, 189,880,615.80 and 121,485,243.60 is: 182,227,865.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,587,077.20 : 189,880,615.80 = 121,485,243.60 : x
  2. Step 2: Convert to fraction form
    126,587,077.20/189,880,615.80 = 121,485,243.60/x
  3. Step 3: Cross multiply
    126,587,077.20x = 189,880,615.80 × 121,485,243.60
  4. Step 4: Simplify right side
    126,587,077.20x = 23,067,692,865,381,008
  5. Step 5: Solve for x
    x = 23,067,692,865,381,008/126,587,077.20
  6. Step 6: Final answer
    x = 182,227,865.40

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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.