Finding the Fourth Proportional to 8,420,645.66, 12,632,526.72 and 2,664,827.99
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Solution
The fourth proportional to 8,420,645.66, 12,632,526.72 and 2,664,827.99 is: 3,997,735.10
Step by Step Solution
- Step 1: Write the proportion equation
8,420,645.66 : 12,632,526.72 = 2,664,827.99 : x - Step 2: Convert to fraction form
8,420,645.66/12,632,526.72 = 2,664,827.99/x - Step 3: Cross multiply
8,420,645.66x = 12,632,526.72 × 2,664,827.99 - Step 4: Simplify right side
8,420,645.66x = 33,663,510,724,716.26 - Step 5: Solve for x
x = 33,663,510,724,716.26/8,420,645.66 - Step 6: Final answer
x = 3,997,735.10
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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.