Home / 126,846,015.05-190,269,022.58-72,426,456.65

Finding the Fourth Proportional to 126,846,015.05, 190,269,022.58 and 72,426,456.65

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Solution

The fourth proportional to 126,846,015.05, 190,269,022.58 and 72,426,456.65 is: 108,639,684.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,846,015.05 : 190,269,022.58 = 72,426,456.65 : x
  2. Step 2: Convert to fraction form
    126,846,015.05/190,269,022.58 = 72,426,456.65/x
  3. Step 3: Cross multiply
    126,846,015.05x = 190,269,022.58 × 72,426,456.65
  4. Step 4: Simplify right side
    126,846,015.05x = 13,780,511,115,366,110
  5. Step 5: Solve for x
    x = 13,780,511,115,366,110/126,846,015.05
  6. Step 6: Final answer
    x = 108,639,684.98

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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.