Finding the Fourth Proportional to 3,879,360.11, 5,353,683.05 and 2,160,480.62
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Solution
The fourth proportional to 3,879,360.11, 5,353,683.05 and 2,160,480.62 is: 2,981,555.76
Step by Step Solution
- Step 1: Write the proportion equation
3,879,360.11 : 5,353,683.05 = 2,160,480.62 : x - Step 2: Convert to fraction form
3,879,360.11/5,353,683.05 = 2,160,480.62/x - Step 3: Cross multiply
3,879,360.11x = 5,353,683.05 × 2,160,480.62 - Step 4: Simplify right side
3,879,360.11x = 11,566,528,493,932.90 - Step 5: Solve for x
x = 11,566,528,493,932.90/3,879,360.11 - Step 6: Final answer
x = 2,981,555.76
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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.