Home / 126,367,996.80-189,551,995.20-105,960,662.40

Finding the Fourth Proportional to 126,367,996.80, 189,551,995.20 and 105,960,662.40

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Solution

The fourth proportional to 126,367,996.80, 189,551,995.20 and 105,960,662.40 is: 158,940,993.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,367,996.80 : 189,551,995.20 = 105,960,662.40 : x
  2. Step 2: Convert to fraction form
    126,367,996.80/189,551,995.20 = 105,960,662.40/x
  3. Step 3: Cross multiply
    126,367,996.80x = 189,551,995.20 × 105,960,662.40
  4. Step 4: Simplify right side
    126,367,996.80x = 20,085,054,970,633,620
  5. Step 5: Solve for x
    x = 20,085,054,970,633,620/126,367,996.80
  6. Step 6: Final answer
    x = 158,940,993.60

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1.5x scale

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.