Home / 21,726,615.92-29,982,247.78-11,803,242.16

Finding the Fourth Proportional to 21,726,615.92, 29,982,247.78 and 11,803,242.16

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Solution

The fourth proportional to 21,726,615.92, 29,982,247.78 and 11,803,242.16 is: 16,288,212.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,726,615.92 : 29,982,247.78 = 11,803,242.16 : x
  2. Step 2: Convert to fraction form
    21,726,615.92/29,982,247.78 = 11,803,242.16/x
  3. Step 3: Cross multiply
    21,726,615.92x = 29,982,247.78 × 11,803,242.16
  4. Step 4: Simplify right side
    21,726,615.92x = 353,887,730,961,020.62
  5. Step 5: Solve for x
    x = 353,887,730,961,020.62/21,726,615.92
  6. Step 6: Final answer
    x = 16,288,212.22

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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.