Home / 20,615,592.69-28,449,859.04-11,324,021.36

Finding the Fourth Proportional to 20,615,592.69, 28,449,859.04 and 11,324,021.36

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Solution

The fourth proportional to 20,615,592.69, 28,449,859.04 and 11,324,021.36 is: 15,627,336.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,615,592.69 : 28,449,859.04 = 11,324,021.36 : x
  2. Step 2: Convert to fraction form
    20,615,592.69/28,449,859.04 = 11,324,021.36/x
  3. Step 3: Cross multiply
    20,615,592.69x = 28,449,859.04 × 11,324,021.36
  4. Step 4: Simplify right side
    20,615,592.69x = 322,166,811,457,949.06
  5. Step 5: Solve for x
    x = 322,166,811,457,949.06/20,615,592.69
  6. Step 6: Final answer
    x = 15,627,336.86

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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.