Home / 3,152,718,190.80-4,729,077,286.20-1,991,767,611.60

Finding the Fourth Proportional to 3,152,718,190.80, 4,729,077,286.20 and 1,991,767,611.60

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Solution

The fourth proportional to 3,152,718,190.80, 4,729,077,286.20 and 1,991,767,611.60 is: 2,987,651,417.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,152,718,190.80 : 4,729,077,286.20 = 1,991,767,611.60 : x
  2. Step 2: Convert to fraction form
    3,152,718,190.80/4,729,077,286.20 = 1,991,767,611.60/x
  3. Step 3: Cross multiply
    3,152,718,190.80x = 4,729,077,286.20 × 1,991,767,611.60
  4. Step 4: Simplify right side
    3,152,718,190.80x = 9,419,222,971,406,383,104
  5. Step 5: Solve for x
    x = 9,419,222,971,406,383,104/3,152,718,190.80
  6. Step 6: Final answer
    x = 2,987,651,417.40

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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.