Home / 21,067,289.50-29,072,859.54-11,409,497.50

Finding the Fourth Proportional to 21,067,289.50, 29,072,859.54 and 11,409,497.50

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Solution

The fourth proportional to 21,067,289.50, 29,072,859.54 and 11,409,497.50 is: 15,745,106.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,067,289.50 : 29,072,859.54 = 11,409,497.50 : x
  2. Step 2: Convert to fraction form
    21,067,289.50/29,072,859.54 = 11,409,497.50/x
  3. Step 3: Cross multiply
    21,067,289.50x = 29,072,859.54 × 11,409,497.50
  4. Step 4: Simplify right side
    21,067,289.50x = 331,706,718,239,481.12
  5. Step 5: Solve for x
    x = 331,706,718,239,481.12/21,067,289.50
  6. Step 6: Final answer
    x = 15,745,106.57

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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.