Home / 11,821,081.20-17,731,621.80-6,768,236.40

Finding the Fourth Proportional to 11,821,081.20, 17,731,621.80 and 6,768,236.40

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Solution

The fourth proportional to 11,821,081.20, 17,731,621.80 and 6,768,236.40 is: 10,152,354.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,821,081.20 : 17,731,621.80 = 6,768,236.40 : x
  2. Step 2: Convert to fraction form
    11,821,081.20/17,731,621.80 = 6,768,236.40/x
  3. Step 3: Cross multiply
    11,821,081.20x = 17,731,621.80 × 6,768,236.40
  4. Step 4: Simplify right side
    11,821,081.20x = 120,011,808,097,793.53
  5. Step 5: Solve for x
    x = 120,011,808,097,793.53/11,821,081.20
  6. Step 6: Final answer
    x = 10,152,354.60

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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.