Finding the Fourth Proportional to 20,892,912.14, 31,346,680.08 and 8,122,377.62
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Solution
The fourth proportional to 20,892,912.14, 31,346,680.08 and 8,122,377.62 is: 12,186,409.01
Step by Step Solution
- Step 1: Write the proportion equation
20,892,912.14 : 31,346,680.08 = 8,122,377.62 : x - Step 2: Convert to fraction form
20,892,912.14/31,346,680.08 = 8,122,377.62/x - Step 3: Cross multiply
20,892,912.14x = 31,346,680.08 × 8,122,377.62 - Step 4: Simplify right side
20,892,912.14x = 254,609,572,743,091.81 - Step 5: Solve for x
x = 254,609,572,743,091.81/20,892,912.14 - Step 6: Final answer
x = 12,186,409.01
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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.