Finding the Fourth Proportional to 8,420,647.16, 12,632,528.97 and 2,664,829.49
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Solution
The fourth proportional to 8,420,647.16, 12,632,528.97 and 2,664,829.49 is: 3,997,737.35
Step by Step Solution
- Step 1: Write the proportion equation
8,420,647.16 : 12,632,528.97 = 2,664,829.49 : x - Step 2: Convert to fraction form
8,420,647.16/12,632,528.97 = 2,664,829.49/x - Step 3: Cross multiply
8,420,647.16x = 12,632,528.97 × 2,664,829.49 - Step 4: Simplify right side
8,420,647.16x = 33,663,535,669,372.68 - Step 5: Solve for x
x = 33,663,535,669,372.68/8,420,647.16 - Step 6: Final answer
x = 3,997,737.35
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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.