Finding the Fourth Proportional to 14,366,813.40, 19,826,622.48 and 7,840,861.92
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Solution
The fourth proportional to 14,366,813.40, 19,826,622.48 and 7,840,861.92 is: 10,820,618.66
Step by Step Solution
- Step 1: Write the proportion equation
14,366,813.40 : 19,826,622.48 = 7,840,861.92 : x - Step 2: Convert to fraction form
14,366,813.40/19,826,622.48 = 7,840,861.92/x - Step 3: Cross multiply
14,366,813.40x = 19,826,622.48 × 7,840,861.92 - Step 4: Simplify right side
14,366,813.40x = 155,457,809,205,647.97 - Step 5: Solve for x
x = 155,457,809,205,647.97/14,366,813.40 - Step 6: Final answer
x = 10,820,618.66
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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.