Home / 20,738,046,518.88-28,618,576,455.60-11,222,595,883.68

Finding the Fourth Proportional to 20,738,046,518.88, 28,618,576,455.60 and 11,222,595,883.68

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Solution

The fourth proportional to 20,738,046,518.88, 28,618,576,455.60 and 11,222,595,883.68 is: 15,487,221,423.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,738,046,518.88 : 28,618,576,455.60 = 11,222,595,883.68 : x
  2. Step 2: Convert to fraction form
    20,738,046,518.88/28,618,576,455.60 = 11,222,595,883.68/x
  3. Step 3: Cross multiply
    20,738,046,518.88x = 28,618,576,455.60 × 11,222,595,883.68
  4. Step 4: Simplify right side
    20,738,046,518.88x = 321,174,718,327,397,941,248
  5. Step 5: Solve for x
    x = 321,174,718,327,397,941,248/20,738,046,518.88
  6. Step 6: Final answer
    x = 15,487,221,423.44

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Double scale
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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.