Home / 19,008,311.80-28,512,467.70-5,543,390.20

Finding the Fourth Proportional to 19,008,311.80, 28,512,467.70 and 5,543,390.20

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Solution

The fourth proportional to 19,008,311.80, 28,512,467.70 and 5,543,390.20 is: 8,315,085.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,008,311.80 : 28,512,467.70 = 5,543,390.20 : x
  2. Step 2: Convert to fraction form
    19,008,311.80/28,512,467.70 = 5,543,390.20/x
  3. Step 3: Cross multiply
    19,008,311.80x = 28,512,467.70 × 5,543,390.20
  4. Step 4: Simplify right side
    19,008,311.80x = 158,055,734,025,996.53
  5. Step 5: Solve for x
    x = 158,055,734,025,996.53/19,008,311.80
  6. Step 6: Final answer
    x = 8,315,085.30

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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.