Home / 12,478,260.60-18,723,611.70-7,091,047.80

Finding the Fourth Proportional to 12,478,260.60, 18,723,611.70 and 7,091,047.80

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Solution

The fourth proportional to 12,478,260.60, 18,723,611.70 and 7,091,047.80 is: 10,640,106.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,478,260.60 : 18,723,611.70 = 7,091,047.80 : x
  2. Step 2: Convert to fraction form
    12,478,260.60/18,723,611.70 = 7,091,047.80/x
  3. Step 3: Cross multiply
    12,478,260.60x = 18,723,611.70 × 7,091,047.80
  4. Step 4: Simplify right side
    12,478,260.60x = 132,770,025,553,339.25
  5. Step 5: Solve for x
    x = 132,770,025,553,339.25/12,478,260.60
  6. Step 6: Final answer
    x = 10,640,106.81

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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.