Home / 21,019,279.88-29,007,321.94-12,198,048.18

Finding the Fourth Proportional to 21,019,279.88, 29,007,321.94 and 12,198,048.18

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Solution

The fourth proportional to 21,019,279.88, 29,007,321.94 and 12,198,048.18 is: 16,833,721.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,019,279.88 : 29,007,321.94 = 12,198,048.18 : x
  2. Step 2: Convert to fraction form
    21,019,279.88/29,007,321.94 = 12,198,048.18/x
  3. Step 3: Cross multiply
    21,019,279.88x = 29,007,321.94 × 12,198,048.18
  4. Step 4: Simplify right side
    21,019,279.88x = 353,832,710,596,891.06
  5. Step 5: Solve for x
    x = 353,832,710,596,891.06/21,019,279.88
  6. Step 6: Final answer
    x = 16,833,721.83

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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.