Home / 21,146,590.36-29,183,448.18-11,981,019.16

Finding the Fourth Proportional to 21,146,590.36, 29,183,448.18 and 11,981,019.16

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Solution

The fourth proportional to 21,146,590.36, 29,183,448.18 and 11,981,019.16 is: 16,534,459.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,146,590.36 : 29,183,448.18 = 11,981,019.16 : x
  2. Step 2: Convert to fraction form
    21,146,590.36/29,183,448.18 = 11,981,019.16/x
  3. Step 3: Cross multiply
    21,146,590.36x = 29,183,448.18 × 11,981,019.16
  4. Step 4: Simplify right side
    21,146,590.36x = 349,647,451,799,447.12
  5. Step 5: Solve for x
    x = 349,647,451,799,447.12/21,146,590.36
  6. Step 6: Final answer
    x = 16,534,459.97

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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.