Home / 21,969,906.40-32,954,859.60-19,879,717.60

Finding the Fourth Proportional to 21,969,906.40, 32,954,859.60 and 19,879,717.60

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Solution

The fourth proportional to 21,969,906.40, 32,954,859.60 and 19,879,717.60 is: 29,819,576.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,969,906.40 : 32,954,859.60 = 19,879,717.60 : x
  2. Step 2: Convert to fraction form
    21,969,906.40/32,954,859.60 = 19,879,717.60/x
  3. Step 3: Cross multiply
    21,969,906.40x = 32,954,859.60 × 19,879,717.60
  4. Step 4: Simplify right side
    21,969,906.40x = 655,133,302,395,649
  5. Step 5: Solve for x
    x = 655,133,302,395,649/21,969,906.40
  6. Step 6: Final answer
    x = 29,819,576.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.