Home / 21,405,331,239.42-29,532,692,879.82-12,369,797,597.37

Finding the Fourth Proportional to 21,405,331,239.42, 29,532,692,879.82 and 12,369,797,597.37

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Solution

The fourth proportional to 21,405,331,239.42, 29,532,692,879.82 and 12,369,797,597.37 is: 17,066,469,532.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,405,331,239.42 : 29,532,692,879.82 = 12,369,797,597.37 : x
  2. Step 2: Convert to fraction form
    21,405,331,239.42/29,532,692,879.82 = 12,369,797,597.37/x
  3. Step 3: Cross multiply
    21,405,331,239.42x = 29,532,692,879.82 × 12,369,797,597.37
  4. Step 4: Simplify right side
    21,405,331,239.42x = 365,313,433,428,663,533,568
  5. Step 5: Solve for x
    x = 365,313,433,428,663,533,568/21,405,331,239.42
  6. Step 6: Final answer
    x = 17,066,469,532.41

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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.