Finding the Fourth Proportional to 3,138,613.36, 4,317,695.28 and 2,749,677.28
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Solution
The fourth proportional to 3,138,613.36, 4,317,695.28 and 2,749,677.28 is: 3,782,647.70
Step by Step Solution
- Step 1: Write the proportion equation
3,138,613.36 : 4,317,695.28 = 2,749,677.28 : x - Step 2: Convert to fraction form
3,138,613.36/4,317,695.28 = 2,749,677.28/x - Step 3: Cross multiply
3,138,613.36x = 4,317,695.28 × 2,749,677.28 - Step 4: Simplify right side
3,138,613.36x = 11,872,268,613,379.24 - Step 5: Solve for x
x = 11,872,268,613,379.24/3,138,613.36 - Step 6: Final answer
x = 3,782,647.70
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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.