Home / 132,192,048.70-198,288,073.05-128,412,912.70

Finding the Fourth Proportional to 132,192,048.70, 198,288,073.05 and 128,412,912.70

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Solution

The fourth proportional to 132,192,048.70, 198,288,073.05 and 128,412,912.70 is: 192,619,369.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,192,048.70 : 198,288,073.05 = 128,412,912.70 : x
  2. Step 2: Convert to fraction form
    132,192,048.70/198,288,073.05 = 128,412,912.70/x
  3. Step 3: Cross multiply
    132,192,048.70x = 198,288,073.05 × 128,412,912.70
  4. Step 4: Simplify right side
    132,192,048.70x = 25,462,749,014,020,876
  5. Step 5: Solve for x
    x = 25,462,749,014,020,876/132,192,048.70
  6. Step 6: Final answer
    x = 192,619,369.05

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1.5x scale

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.