Finding the Fourth Proportional to 3,879,368.82, 5,353,695.08 and 2,160,489.35
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Solution
The fourth proportional to 3,879,368.82, 5,353,695.08 and 2,160,489.35 is: 2,981,567.80
Step by Step Solution
- Step 1: Write the proportion equation
3,879,368.82 : 5,353,695.08 = 2,160,489.35 : x - Step 2: Convert to fraction form
3,879,368.82/5,353,695.08 = 2,160,489.35/x - Step 3: Cross multiply
3,879,368.82x = 5,353,695.08 × 2,160,489.35 - Step 4: Simplify right side
3,879,368.82x = 11,566,601,165,916.48 - Step 5: Solve for x
x = 11,566,601,165,916.48/3,879,368.82 - Step 6: Final answer
x = 2,981,567.80
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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.