Home / 90,699,447,147.60-136,049,170,721.40-53,415,247,198.80

Finding the Fourth Proportional to 90,699,447,147.60, 136,049,170,721.40 and 53,415,247,198.80

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Solution

The fourth proportional to 90,699,447,147.60, 136,049,170,721.40 and 53,415,247,198.80 is: 80,122,870,798.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,699,447,147.60 : 136,049,170,721.40 = 53,415,247,198.80 : x
  2. Step 2: Convert to fraction form
    90,699,447,147.60/136,049,170,721.40 = 53,415,247,198.80/x
  3. Step 3: Cross multiply
    90,699,447,147.60x = 136,049,170,721.40 × 53,415,247,198.80
  4. Step 4: Simplify right side
    90,699,447,147.60x = 7,267,100,085,275,324,317,696
  5. Step 5: Solve for x
    x = 7,267,100,085,275,324,317,696/90,699,447,147.60
  6. Step 6: Final answer
    x = 80,122,870,798.20

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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.