Finding the Fourth Proportional to 8,177,912.82, 11,285,596.80 and 4,506,961.68
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Solution
The fourth proportional to 8,177,912.82, 11,285,596.80 and 4,506,961.68 is: 6,219,649.61
Step by Step Solution
- Step 1: Write the proportion equation
8,177,912.82 : 11,285,596.80 = 4,506,961.68 : x - Step 2: Convert to fraction form
8,177,912.82/11,285,596.80 = 4,506,961.68/x - Step 3: Cross multiply
8,177,912.82x = 11,285,596.80 × 4,506,961.68 - Step 4: Simplify right side
8,177,912.82x = 50,863,752,313,530.62 - Step 5: Solve for x
x = 50,863,752,313,530.62/8,177,912.82 - Step 6: Final answer
x = 6,219,649.61
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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.