Home / 21,801,880.40-32,702,820.60-19,782,404.60

Finding the Fourth Proportional to 21,801,880.40, 32,702,820.60 and 19,782,404.60

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Solution

The fourth proportional to 21,801,880.40, 32,702,820.60 and 19,782,404.60 is: 29,673,606.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,801,880.40 : 32,702,820.60 = 19,782,404.60 : x
  2. Step 2: Convert to fraction form
    21,801,880.40/32,702,820.60 = 19,782,404.60/x
  3. Step 3: Cross multiply
    21,801,880.40x = 32,702,820.60 × 19,782,404.60
  4. Step 4: Simplify right side
    21,801,880.40x = 646,940,428,670,414.88
  5. Step 5: Solve for x
    x = 646,940,428,670,414.88/21,801,880.40
  6. Step 6: Final answer
    x = 29,673,606.90

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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.