Home / 126,028,051.20-189,042,076.80-49,325,587.20

Finding the Fourth Proportional to 126,028,051.20, 189,042,076.80 and 49,325,587.20

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Solution

The fourth proportional to 126,028,051.20, 189,042,076.80 and 49,325,587.20 is: 73,988,380.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,028,051.20 : 189,042,076.80 = 49,325,587.20 : x
  2. Step 2: Convert to fraction form
    126,028,051.20/189,042,076.80 = 49,325,587.20/x
  3. Step 3: Cross multiply
    126,028,051.20x = 189,042,076.80 × 49,325,587.20
  4. Step 4: Simplify right side
    126,028,051.20x = 9,324,611,443,667,498
  5. Step 5: Solve for x
    x = 9,324,611,443,667,498/126,028,051.20
  6. Step 6: Final answer
    x = 73,988,380.80

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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.