Home / 126,130,628.40-189,195,942.60-39,895,468.80

Finding the Fourth Proportional to 126,130,628.40, 189,195,942.60 and 39,895,468.80

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Solution

The fourth proportional to 126,130,628.40, 189,195,942.60 and 39,895,468.80 is: 59,843,203.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,130,628.40 : 189,195,942.60 = 39,895,468.80 : x
  2. Step 2: Convert to fraction form
    126,130,628.40/189,195,942.60 = 39,895,468.80/x
  3. Step 3: Cross multiply
    126,130,628.40x = 189,195,942.60 × 39,895,468.80
  4. Step 4: Simplify right side
    126,130,628.40x = 7,548,060,825,084,890
  5. Step 5: Solve for x
    x = 7,548,060,825,084,890/126,130,628.40
  6. Step 6: Final answer
    x = 59,843,203.20

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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.