Home / 18,682,885.70-28,024,328.55-5,219,692.10

Finding the Fourth Proportional to 18,682,885.70, 28,024,328.55 and 5,219,692.10

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Solution

The fourth proportional to 18,682,885.70, 28,024,328.55 and 5,219,692.10 is: 7,829,538.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,682,885.70 : 28,024,328.55 = 5,219,692.10 : x
  2. Step 2: Convert to fraction form
    18,682,885.70/28,024,328.55 = 5,219,692.10/x
  3. Step 3: Cross multiply
    18,682,885.70x = 28,024,328.55 × 5,219,692.10
  4. Step 4: Simplify right side
    18,682,885.70x = 146,278,366,340,239.44
  5. Step 5: Solve for x
    x = 146,278,366,340,239.44/18,682,885.70
  6. Step 6: Final answer
    x = 7,829,538.15

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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.