Home / 305,979,943.05-422,240,002.79-166,747,715.37

Finding the Fourth Proportional to 305,979,943.05, 422,240,002.79 and 166,747,715.37

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Solution

The fourth proportional to 305,979,943.05, 422,240,002.79 and 166,747,715.37 is: 230,105,134.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,979,943.05 : 422,240,002.79 = 166,747,715.37 : x
  2. Step 2: Convert to fraction form
    305,979,943.05/422,240,002.79 = 166,747,715.37/x
  3. Step 3: Cross multiply
    305,979,943.05x = 422,240,002.79 × 166,747,715.37
  4. Step 4: Simplify right side
    305,979,943.05x = 70,407,555,802,221,192
  5. Step 5: Solve for x
    x = 70,407,555,802,221,192/305,979,943.05
  6. Step 6: Final answer
    x = 230,105,134.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.