Home / 21,929,371.99-30,253,033.90-13,222,707.65

Finding the Fourth Proportional to 21,929,371.99, 30,253,033.90 and 13,222,707.65

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Solution

The fourth proportional to 21,929,371.99, 30,253,033.90 and 13,222,707.65 is: 18,241,608.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,929,371.99 : 30,253,033.90 = 13,222,707.65 : x
  2. Step 2: Convert to fraction form
    21,929,371.99/30,253,033.90 = 13,222,707.65/x
  3. Step 3: Cross multiply
    21,929,371.99x = 30,253,033.90 × 13,222,707.65
  4. Step 4: Simplify right side
    21,929,371.99x = 400,027,022,859,747
  5. Step 5: Solve for x
    x = 400,027,022,859,747/21,929,371.99
  6. Step 6: Final answer
    x = 18,241,608.70

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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.