Finding the Fourth Proportional to 3,879,366.72, 5,353,692.17 and 2,160,487.23
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Solution
The fourth proportional to 3,879,366.72, 5,353,692.17 and 2,160,487.23 is: 2,981,564.88
Step by Step Solution
- Step 1: Write the proportion equation
3,879,366.72 : 5,353,692.17 = 2,160,487.23 : x - Step 2: Convert to fraction form
3,879,366.72/5,353,692.17 = 2,160,487.23/x - Step 3: Cross multiply
3,879,366.72x = 5,353,692.17 × 2,160,487.23 - Step 4: Simplify right side
3,879,366.72x = 11,566,583,555,833.55 - Step 5: Solve for x
x = 11,566,583,555,833.55/3,879,366.72 - Step 6: Final answer
x = 2,981,564.88
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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.