Finding the Fourth Proportional to 10,647,734.28, 14,676,658.74 and 8,320,582.20
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Solution
The fourth proportional to 10,647,734.28, 14,676,658.74 and 8,320,582.20 is: 11,468,951.26
Step by Step Solution
- Step 1: Write the proportion equation
10,647,734.28 : 14,676,658.74 = 8,320,582.20 : x - Step 2: Convert to fraction form
10,647,734.28/14,676,658.74 = 8,320,582.20/x - Step 3: Cross multiply
10,647,734.28x = 14,676,658.74 × 8,320,582.20 - Step 4: Simplify right side
10,647,734.28x = 122,118,345,467,518.44 - Step 5: Solve for x
x = 122,118,345,467,518.44/10,647,734.28 - Step 6: Final answer
x = 11,468,951.26
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.