Home / 21,708,136.62-29,957,288.94-11,919,215.16

Finding the Fourth Proportional to 21,708,136.62, 29,957,288.94 and 11,919,215.16

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Solution

The fourth proportional to 21,708,136.62, 29,957,288.94 and 11,919,215.16 is: 16,448,550.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,708,136.62 : 29,957,288.94 = 11,919,215.16 : x
  2. Step 2: Convert to fraction form
    21,708,136.62/29,957,288.94 = 11,919,215.16/x
  3. Step 3: Cross multiply
    21,708,136.62x = 29,957,288.94 × 11,919,215.16
  4. Step 4: Simplify right side
    21,708,136.62x = 357,067,372,486,148.38
  5. Step 5: Solve for x
    x = 357,067,372,486,148.38/21,708,136.62
  6. Step 6: Final answer
    x = 16,448,550.09

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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.