Home / 21,236,496.68-29,308,614.08-12,981,391.12

Finding the Fourth Proportional to 21,236,496.68, 29,308,614.08 and 12,981,391.12

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Solution

The fourth proportional to 21,236,496.68, 29,308,614.08 and 12,981,391.12 is: 17,915,694.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,236,496.68 : 29,308,614.08 = 12,981,391.12 : x
  2. Step 2: Convert to fraction form
    21,236,496.68/29,308,614.08 = 12,981,391.12/x
  3. Step 3: Cross multiply
    21,236,496.68x = 29,308,614.08 × 12,981,391.12
  4. Step 4: Simplify right side
    21,236,496.68x = 380,466,582,557,618.94
  5. Step 5: Solve for x
    x = 380,466,582,557,618.94/21,236,496.68
  6. Step 6: Final answer
    x = 17,915,694.30

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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.