Finding the Fourth Proportional to 7,950,138.19, 11,901,666.08 and 4,907,721.49
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Solution
The fourth proportional to 7,950,138.19, 11,901,666.08 and 4,907,721.49 is: 7,347,049.95
Step by Step Solution
- Step 1: Write the proportion equation
7,950,138.19 : 11,901,666.08 = 4,907,721.49 : x - Step 2: Convert to fraction form
7,950,138.19/11,901,666.08 = 4,907,721.49/x - Step 3: Cross multiply
7,950,138.19x = 11,901,666.08 × 4,907,721.49 - Step 4: Simplify right side
7,950,138.19x = 58,410,062,370,135.20 - Step 5: Solve for x
x = 58,410,062,370,135.20/7,950,138.19 - Step 6: Final answer
x = 7,347,049.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.