Home / 20,738,046,515.88-28,618,576,451.46-11,222,595,880.68

Finding the Fourth Proportional to 20,738,046,515.88, 28,618,576,451.46 and 11,222,595,880.68

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Solution

The fourth proportional to 20,738,046,515.88, 28,618,576,451.46 and 11,222,595,880.68 is: 15,487,221,419.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,738,046,515.88 : 28,618,576,451.46 = 11,222,595,880.68 : x
  2. Step 2: Convert to fraction form
    20,738,046,515.88/28,618,576,451.46 = 11,222,595,880.68/x
  3. Step 3: Cross multiply
    20,738,046,515.88x = 28,618,576,451.46 × 11,222,595,880.68
  4. Step 4: Simplify right side
    20,738,046,515.88x = 321,174,718,195,080,626,176
  5. Step 5: Solve for x
    x = 321,174,718,195,080,626,176/20,738,046,515.88
  6. Step 6: Final answer
    x = 15,487,221,419.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.