Home / 20,451,211.40-30,676,817.10-19,191,499.40

Finding the Fourth Proportional to 20,451,211.40, 30,676,817.10 and 19,191,499.40

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Solution

The fourth proportional to 20,451,211.40, 30,676,817.10 and 19,191,499.40 is: 28,787,249.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,451,211.40 : 30,676,817.10 = 19,191,499.40 : x
  2. Step 2: Convert to fraction form
    20,451,211.40/30,676,817.10 = 19,191,499.40/x
  3. Step 3: Cross multiply
    20,451,211.40x = 30,676,817.10 × 19,191,499.40
  4. Step 4: Simplify right side
    20,451,211.40x = 588,734,116,968,559.75
  5. Step 5: Solve for x
    x = 588,734,116,968,559.75/20,451,211.40
  6. Step 6: Final answer
    x = 28,787,249.10

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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.