Finding the Fourth Proportional to 7,835,771.20, 11,749,578.72 and 2,786,347.84
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Solution
The fourth proportional to 7,835,771.20, 11,749,578.72 and 2,786,347.84 is: 4,178,071.62
Step by Step Solution
- Step 1: Write the proportion equation
7,835,771.20 : 11,749,578.72 = 2,786,347.84 : x - Step 2: Convert to fraction form
7,835,771.20/11,749,578.72 = 2,786,347.84/x - Step 3: Cross multiply
7,835,771.20x = 11,749,578.72 × 2,786,347.84 - Step 4: Simplify right side
7,835,771.20x = 32,738,413,287,381.96 - Step 5: Solve for x
x = 32,738,413,287,381.96/7,835,771.20 - Step 6: Final answer
x = 4,178,071.62
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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.