Home / 21,257,825.42-29,336,729.38-11,965,995.02

Finding the Fourth Proportional to 21,257,825.42, 29,336,729.38 and 11,965,995.02

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Solution

The fourth proportional to 21,257,825.42, 29,336,729.38 and 11,965,995.02 is: 16,513,596.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,257,825.42 : 29,336,729.38 = 11,965,995.02 : x
  2. Step 2: Convert to fraction form
    21,257,825.42/29,336,729.38 = 11,965,995.02/x
  3. Step 3: Cross multiply
    21,257,825.42x = 29,336,729.38 × 11,965,995.02
  4. Step 4: Simplify right side
    21,257,825.42x = 351,043,157,664,167.69
  5. Step 5: Solve for x
    x = 351,043,157,664,167.69/21,257,825.42
  6. Step 6: Final answer
    x = 16,513,596.79

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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.