Home / 128,203,479.60-192,305,219.40-37,330,033.20

Finding the Fourth Proportional to 128,203,479.60, 192,305,219.40 and 37,330,033.20

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Solution

The fourth proportional to 128,203,479.60, 192,305,219.40 and 37,330,033.20 is: 55,995,049.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,203,479.60 : 192,305,219.40 = 37,330,033.20 : x
  2. Step 2: Convert to fraction form
    128,203,479.60/192,305,219.40 = 37,330,033.20/x
  3. Step 3: Cross multiply
    128,203,479.60x = 192,305,219.40 × 37,330,033.20
  4. Step 4: Simplify right side
    128,203,479.60x = 7,178,760,224,735,285
  5. Step 5: Solve for x
    x = 7,178,760,224,735,285/128,203,479.60
  6. Step 6: Final answer
    x = 55,995,049.80

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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.