Finding the Fourth Proportional to 13,081,717.12, 18,052,769.68 and 7,281,868.98
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Solution
The fourth proportional to 13,081,717.12, 18,052,769.68 and 7,281,868.98 is: 10,048,979.22
Step by Step Solution
- Step 1: Write the proportion equation
13,081,717.12 : 18,052,769.68 = 7,281,868.98 : x - Step 2: Convert to fraction form
13,081,717.12/18,052,769.68 = 7,281,868.98/x - Step 3: Cross multiply
13,081,717.12x = 18,052,769.68 × 7,281,868.98 - Step 4: Simplify right side
13,081,717.12x = 131,457,903,535,876.53 - Step 5: Solve for x
x = 131,457,903,535,876.53/13,081,717.12 - Step 6: Final answer
x = 10,048,979.22
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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.