Finding the Fourth Proportional to 7,232,081.20, 10,848,121.80 and 5,552,465.20
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Solution
The fourth proportional to 7,232,081.20, 10,848,121.80 and 5,552,465.20 is: 8,328,697.80
Step by Step Solution
- Step 1: Write the proportion equation
7,232,081.20 : 10,848,121.80 = 5,552,465.20 : x - Step 2: Convert to fraction form
7,232,081.20/10,848,121.80 = 5,552,465.20/x - Step 3: Cross multiply
7,232,081.20x = 10,848,121.80 × 5,552,465.20 - Step 4: Simplify right side
7,232,081.20x = 60,233,818,779,861.37 - Step 5: Solve for x
x = 60,233,818,779,861.37/7,232,081.20 - Step 6: Final answer
x = 8,328,697.80
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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.