Finding the Fourth Proportional to 4,659,369.40, 6,429,916.60 and 2,622,178.92
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Solution
The fourth proportional to 4,659,369.40, 6,429,916.60 and 2,622,178.92 is: 3,618,599.50
Step by Step Solution
- Step 1: Write the proportion equation
4,659,369.40 : 6,429,916.60 = 2,622,178.92 : x - Step 2: Convert to fraction form
4,659,369.40/6,429,916.60 = 2,622,178.92/x - Step 3: Cross multiply
4,659,369.40x = 6,429,916.60 × 2,622,178.92 - Step 4: Simplify right side
4,659,369.40x = 16,860,391,765,878.07 - Step 5: Solve for x
x = 16,860,391,765,878.07/4,659,369.40 - Step 6: Final answer
x = 3,618,599.50
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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.