Finding the Fourth Proportional to 7,295,749.87, 10,068,174.93 and 3,988,049.11
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Solution
The fourth proportional to 7,295,749.87, 10,068,174.93 and 3,988,049.11 is: 5,503,529.70
Step by Step Solution
- Step 1: Write the proportion equation
7,295,749.87 : 10,068,174.93 = 3,988,049.11 : x - Step 2: Convert to fraction form
7,295,749.87/10,068,174.93 = 3,988,049.11/x - Step 3: Cross multiply
7,295,749.87x = 10,068,174.93 × 3,988,049.11 - Step 4: Simplify right side
7,295,749.87x = 40,152,376,068,910.81 - Step 5: Solve for x
x = 40,152,376,068,910.81/7,295,749.87 - Step 6: Final answer
x = 5,503,529.70
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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.