Home / 21,147,111.91-29,183,014.44-11,979,754.66

Finding the Fourth Proportional to 21,147,111.91, 29,183,014.44 and 11,979,754.66

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Solution

The fourth proportional to 21,147,111.91, 29,183,014.44 and 11,979,754.66 is: 16,532,061.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,147,111.91 : 29,183,014.44 = 11,979,754.66 : x
  2. Step 2: Convert to fraction form
    21,147,111.91/29,183,014.44 = 11,979,754.66/x
  3. Step 3: Cross multiply
    21,147,111.91x = 29,183,014.44 × 11,979,754.66
  4. Step 4: Simplify right side
    21,147,111.91x = 349,605,353,365,834.25
  5. Step 5: Solve for x
    x = 349,605,353,365,834.25/21,147,111.91
  6. Step 6: Final answer
    x = 16,532,061.44

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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.