Home / 187,220,749.52-280,646,889.78-109,398,891.44

Finding the Fourth Proportional to 187,220,749.52, 280,646,889.78 and 109,398,891.44

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Solution

The fourth proportional to 187,220,749.52, 280,646,889.78 and 109,398,891.44 is: 163,990,683.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,220,749.52 : 280,646,889.78 = 109,398,891.44 : x
  2. Step 2: Convert to fraction form
    187,220,749.52/280,646,889.78 = 109,398,891.44/x
  3. Step 3: Cross multiply
    187,220,749.52x = 280,646,889.78 × 109,398,891.44
  4. Step 4: Simplify right side
    187,220,749.52x = 30,702,458,629,127,728
  5. Step 5: Solve for x
    x = 30,702,458,629,127,728/187,220,749.52
  6. Step 6: Final answer
    x = 163,990,683.23

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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.