Home / 21,509,136.45-29,682,233.06-11,719,661.67

Finding the Fourth Proportional to 21,509,136.45, 29,682,233.06 and 11,719,661.67

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Solution

The fourth proportional to 21,509,136.45, 29,682,233.06 and 11,719,661.67 is: 16,172,928.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,509,136.45 : 29,682,233.06 = 11,719,661.67 : x
  2. Step 2: Convert to fraction form
    21,509,136.45/29,682,233.06 = 11,719,661.67/x
  3. Step 3: Cross multiply
    21,509,136.45x = 29,682,233.06 × 11,719,661.67
  4. Step 4: Simplify right side
    21,509,136.45x = 347,865,729,014,690.50
  5. Step 5: Solve for x
    x = 347,865,729,014,690.50/21,509,136.45
  6. Step 6: Final answer
    x = 16,172,928.64

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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.