Finding the Fourth Proportional to 13,331,394.87, 18,398,821.19 and 7,530,550.31
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Solution
The fourth proportional to 13,331,394.87, 18,398,821.19 and 7,530,550.31 is: 10,393,004.62
Step by Step Solution
- Step 1: Write the proportion equation
13,331,394.87 : 18,398,821.19 = 7,530,550.31 : x - Step 2: Convert to fraction form
13,331,394.87/18,398,821.19 = 7,530,550.31/x - Step 3: Cross multiply
13,331,394.87x = 18,398,821.19 × 7,530,550.31 - Step 4: Simplify right side
13,331,394.87x = 138,553,248,486,342.20 - Step 5: Solve for x
x = 138,553,248,486,342.20/13,331,394.87 - Step 6: Final answer
x = 10,393,004.62
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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.