Home / 129,007,014.63-192,535,889.27-120,259,778.88

Finding the Fourth Proportional to 129,007,014.63, 192,535,889.27 and 120,259,778.88

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Solution

The fourth proportional to 129,007,014.63, 192,535,889.27 and 120,259,778.88 is: 179,481,119.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,007,014.63 : 192,535,889.27 = 120,259,778.88 : x
  2. Step 2: Convert to fraction form
    129,007,014.63/192,535,889.27 = 120,259,778.88/x
  3. Step 3: Cross multiply
    129,007,014.63x = 192,535,889.27 × 120,259,778.88
  4. Step 4: Simplify right side
    129,007,014.63x = 23,154,323,469,473,064
  5. Step 5: Solve for x
    x = 23,154,323,469,473,064/129,007,014.63
  6. Step 6: Final answer
    x = 179,481,119.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.