Finding the Fourth Proportional to 6,477,402.92, 9,705,469.74 and 2,215,245.80
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Solution
The fourth proportional to 6,477,402.92, 9,705,469.74 and 2,215,245.80 is: 3,319,231.70
Step by Step Solution
- Step 1: Write the proportion equation
6,477,402.92 : 9,705,469.74 = 2,215,245.80 : x - Step 2: Convert to fraction form
6,477,402.92/9,705,469.74 = 2,215,245.80/x - Step 3: Cross multiply
6,477,402.92x = 9,705,469.74 × 2,215,245.80 - Step 4: Simplify right side
6,477,402.92x = 21,500,001,078,562.09 - Step 5: Solve for x
x = 21,500,001,078,562.09/6,477,402.92 - Step 6: Final answer
x = 3,319,231.70
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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.