Home / 6,476,811.40-9,715,217.10-1,989,080.20

Finding the Fourth Proportional to 6,476,811.40, 9,715,217.10 and 1,989,080.20

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Solution

The fourth proportional to 6,476,811.40, 9,715,217.10 and 1,989,080.20 is: 2,983,620.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,476,811.40 : 9,715,217.10 = 1,989,080.20 : x
  2. Step 2: Convert to fraction form
    6,476,811.40/9,715,217.10 = 1,989,080.20/x
  3. Step 3: Cross multiply
    6,476,811.40x = 9,715,217.10 × 1,989,080.20
  4. Step 4: Simplify right side
    6,476,811.40x = 19,324,345,972,311.42
  5. Step 5: Solve for x
    x = 19,324,345,972,311.42/6,476,811.40
  6. Step 6: Final answer
    x = 2,983,620.30

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Double scale
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Similar ratio
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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.