Finding the Fourth Proportional to 13,879,874.07, 20,824,166.58 and 8,346,778.05
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Solution
The fourth proportional to 13,879,874.07, 20,824,166.58 and 8,346,778.05 is: 12,522,786.28
Step by Step Solution
- Step 1: Write the proportion equation
13,879,874.07 : 20,824,166.58 = 8,346,778.05 : x - Step 2: Convert to fraction form
13,879,874.07/20,824,166.58 = 8,346,778.05/x - Step 3: Cross multiply
13,879,874.07x = 20,824,166.58 × 8,346,778.05 - Step 4: Simplify right side
13,879,874.07x = 173,814,696,519,487.56 - Step 5: Solve for x
x = 173,814,696,519,487.56/13,879,874.07 - Step 6: Final answer
x = 12,522,786.28
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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.