Home / 20,585,107.20-30,877,660.80-20,231,212.80

Finding the Fourth Proportional to 20,585,107.20, 30,877,660.80 and 20,231,212.80

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Solution

The fourth proportional to 20,585,107.20, 30,877,660.80 and 20,231,212.80 is: 30,346,819.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,585,107.20 : 30,877,660.80 = 20,231,212.80 : x
  2. Step 2: Convert to fraction form
    20,585,107.20/30,877,660.80 = 20,231,212.80/x
  3. Step 3: Cross multiply
    20,585,107.20x = 30,877,660.80 × 20,231,212.80
  4. Step 4: Simplify right side
    20,585,107.20x = 624,692,526,411,018.25
  5. Step 5: Solve for x
    x = 624,692,526,411,018.25/20,585,107.20
  6. Step 6: Final answer
    x = 30,346,819.20

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1.5x scale

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.