Home / 132,100,072.10-198,150,108.15-80,444,006.90

Finding the Fourth Proportional to 132,100,072.10, 198,150,108.15 and 80,444,006.90

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Solution

The fourth proportional to 132,100,072.10, 198,150,108.15 and 80,444,006.90 is: 120,666,010.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,100,072.10 : 198,150,108.15 = 80,444,006.90 : x
  2. Step 2: Convert to fraction form
    132,100,072.10/198,150,108.15 = 80,444,006.90/x
  3. Step 3: Cross multiply
    132,100,072.10x = 198,150,108.15 × 80,444,006.90
  4. Step 4: Simplify right side
    132,100,072.10x = 15,939,988,667,254,348
  5. Step 5: Solve for x
    x = 15,939,988,667,254,348/132,100,072.10
  6. Step 6: Final answer
    x = 120,666,010.35

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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.