Home / 18,954,769.20-28,376,166.60-12,572,228.40

Finding the Fourth Proportional to 18,954,769.20, 28,376,166.60 and 12,572,228.40

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Solution

The fourth proportional to 18,954,769.20, 28,376,166.60 and 12,572,228.40 is: 18,821,207.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,954,769.20 : 28,376,166.60 = 12,572,228.40 : x
  2. Step 2: Convert to fraction form
    18,954,769.20/28,376,166.60 = 12,572,228.40/x
  3. Step 3: Cross multiply
    18,954,769.20x = 28,376,166.60 × 12,572,228.40
  4. Step 4: Simplify right side
    18,954,769.20x = 356,751,647,611,651.50
  5. Step 5: Solve for x
    x = 356,751,647,611,651.50/18,954,769.20
  6. Step 6: Final answer
    x = 18,821,207.68

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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.