Home / 21,581,286.24-29,802,063.30-13,859,780.20

Finding the Fourth Proportional to 21,581,286.24, 29,802,063.30 and 13,859,780.20

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Solution

The fourth proportional to 21,581,286.24, 29,802,063.30 and 13,859,780.20 is: 19,139,269.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,581,286.24 : 29,802,063.30 = 13,859,780.20 : x
  2. Step 2: Convert to fraction form
    21,581,286.24/29,802,063.30 = 13,859,780.20/x
  3. Step 3: Cross multiply
    21,581,286.24x = 29,802,063.30 × 13,859,780.20
  4. Step 4: Simplify right side
    21,581,286.24x = 413,050,046,844,486.62
  5. Step 5: Solve for x
    x = 413,050,046,844,486.62/21,581,286.24
  6. Step 6: Final answer
    x = 19,139,269.19

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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.