Home / 90,353,340,529.20-135,530,010,793.80-80,435,376,010.80

Finding the Fourth Proportional to 90,353,340,529.20, 135,530,010,793.80 and 80,435,376,010.80

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Solution

The fourth proportional to 90,353,340,529.20, 135,530,010,793.80 and 80,435,376,010.80 is: 120,653,064,016.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,353,340,529.20 : 135,530,010,793.80 = 80,435,376,010.80 : x
  2. Step 2: Convert to fraction form
    90,353,340,529.20/135,530,010,793.80 = 80,435,376,010.80/x
  3. Step 3: Cross multiply
    90,353,340,529.20x = 135,530,010,793.80 × 80,435,376,010.80
  4. Step 4: Simplify right side
    90,353,340,529.20x = 10,901,407,378,947,086,221,312
  5. Step 5: Solve for x
    x = 10,901,407,378,947,086,221,312/90,353,340,529.20
  6. Step 6: Final answer
    x = 120,653,064,016.20

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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.