Finding the Fourth Proportional to 13,320,311.64, 18,382,029.84 and 7,208,740.14
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Solution
The fourth proportional to 13,320,311.64, 18,382,029.84 and 7,208,740.14 is: 9,948,061.27
Step by Step Solution
- Step 1: Write the proportion equation
13,320,311.64 : 18,382,029.84 = 7,208,740.14 : x - Step 2: Convert to fraction form
13,320,311.64/18,382,029.84 = 7,208,740.14/x - Step 3: Cross multiply
13,320,311.64x = 18,382,029.84 × 7,208,740.14 - Step 4: Simplify right side
13,320,311.64x = 132,511,276,362,285.77 - Step 5: Solve for x
x = 132,511,276,362,285.77/13,320,311.64 - Step 6: Final answer
x = 9,948,061.27
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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.