Finding the Fourth Proportional to 13,081,716.62, 18,052,768.98 and 7,281,868.49
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Solution
The fourth proportional to 13,081,716.62, 18,052,768.98 and 7,281,868.49 is: 10,048,978.54
Step by Step Solution
- Step 1: Write the proportion equation
13,081,716.62 : 18,052,768.98 = 7,281,868.49 : x - Step 2: Convert to fraction form
13,081,716.62/18,052,768.98 = 7,281,868.49/x - Step 3: Cross multiply
13,081,716.62x = 18,052,768.98 × 7,281,868.49 - Step 4: Simplify right side
13,081,716.62x = 131,457,889,502,447.61 - Step 5: Solve for x
x = 131,457,889,502,447.61/13,081,716.62 - Step 6: Final answer
x = 10,048,978.54
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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.