Finding the Fourth Proportional to 10,862,583.40, 16,295,843.40 and 5,457,631.60
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Solution
The fourth proportional to 10,862,583.40, 16,295,843.40 and 5,457,631.60 is: 8,187,436.32
Step by Step Solution
- Step 1: Write the proportion equation
10,862,583.40 : 16,295,843.40 = 5,457,631.60 : x - Step 2: Convert to fraction form
10,862,583.40/16,295,843.40 = 5,457,631.60/x - Step 3: Cross multiply
10,862,583.40x = 16,295,843.40 × 5,457,631.60 - Step 4: Simplify right side
10,862,583.40x = 88,936,709,888,491.44 - Step 5: Solve for x
x = 88,936,709,888,491.44/10,862,583.40 - Step 6: Final answer
x = 8,187,436.32
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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.