Home / 126,144,811.20-189,161,920.80-57,964,843.20

Finding the Fourth Proportional to 126,144,811.20, 189,161,920.80 and 57,964,843.20

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Solution

The fourth proportional to 126,144,811.20, 189,161,920.80 and 57,964,843.20 is: 86,921,855.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,144,811.20 : 189,161,920.80 = 57,964,843.20 : x
  2. Step 2: Convert to fraction form
    126,144,811.20/189,161,920.80 = 57,964,843.20/x
  3. Step 3: Cross multiply
    126,144,811.20x = 189,161,920.80 × 57,964,843.20
  4. Step 4: Simplify right side
    126,144,811.20x = 10,964,741,078,582,820
  5. Step 5: Solve for x
    x = 10,964,741,078,582,820/126,144,811.20
  6. Step 6: Final answer
    x = 86,921,855.72

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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.