Finding the Fourth Proportional to 7,484,135.40, 11,205,207.90 and 7,274,183.40
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Solution
The fourth proportional to 7,484,135.40, 11,205,207.90 and 7,274,183.40 is: 10,890,868.88
Step by Step Solution
- Step 1: Write the proportion equation
7,484,135.40 : 11,205,207.90 = 7,274,183.40 : x - Step 2: Convert to fraction form
7,484,135.40/11,205,207.90 = 7,274,183.40/x - Step 3: Cross multiply
7,484,135.40x = 11,205,207.90 × 7,274,183.40 - Step 4: Simplify right side
7,484,135.40x = 81,508,737,299,728.86 - Step 5: Solve for x
x = 81,508,737,299,728.86/7,484,135.40 - Step 6: Final answer
x = 10,890,868.88
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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.