Home / 8,271,144.20-12,378,722.70-7,263,374.60

Finding the Fourth Proportional to 8,271,144.20, 12,378,722.70 and 7,263,374.60

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Solution

The fourth proportional to 8,271,144.20, 12,378,722.70 and 7,263,374.60 is: 10,870,479.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,271,144.20 : 12,378,722.70 = 7,263,374.60 : x
  2. Step 2: Convert to fraction form
    8,271,144.20/12,378,722.70 = 7,263,374.60/x
  3. Step 3: Cross multiply
    8,271,144.20x = 12,378,722.70 × 7,263,374.60
  4. Step 4: Simplify right side
    8,271,144.20x = 89,911,300,039,623.41
  5. Step 5: Solve for x
    x = 89,911,300,039,623.41/8,271,144.20
  6. Step 6: Final answer
    x = 10,870,479.09

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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.