Finding the Fourth Proportional to 19,678,276.80, 29,529,856.80 and 11,591,236.80
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Solution
The fourth proportional to 19,678,276.80, 29,529,856.80 and 11,591,236.80 is: 17,394,183.77
Step by Step Solution
- Step 1: Write the proportion equation
19,678,276.80 : 29,529,856.80 = 11,591,236.80 : x - Step 2: Convert to fraction form
19,678,276.80/29,529,856.80 = 11,591,236.80/x - Step 3: Cross multiply
19,678,276.80x = 29,529,856.80 × 11,591,236.80 - Step 4: Simplify right side
19,678,276.80x = 342,287,562,838,890.25 - Step 5: Solve for x
x = 342,287,562,838,890.25/19,678,276.80 - Step 6: Final answer
x = 17,394,183.77
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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.