Home / 126,179,990.65-189,285,099.50-38,730,054.61

Finding the Fourth Proportional to 126,179,990.65, 189,285,099.50 and 38,730,054.61

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Solution

The fourth proportional to 126,179,990.65, 189,285,099.50 and 38,730,054.61 is: 58,099,720.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,179,990.65 : 189,285,099.50 = 38,730,054.61 : x
  2. Step 2: Convert to fraction form
    126,179,990.65/189,285,099.50 = 38,730,054.61/x
  3. Step 3: Cross multiply
    126,179,990.65x = 189,285,099.50 × 38,730,054.61
  4. Step 4: Simplify right side
    126,179,990.65x = 7,331,022,240,494,284
  5. Step 5: Solve for x
    x = 7,331,022,240,494,284/126,179,990.65
  6. Step 6: Final answer
    x = 58,099,720.90

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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.