Finding the Fourth Proportional to 13,345,379.19, 18,416,129.72 and 7,233,676.47
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Solution
The fourth proportional to 13,345,379.19, 18,416,129.72 and 7,233,676.47 is: 9,982,206.00
Step by Step Solution
- Step 1: Write the proportion equation
13,345,379.19 : 18,416,129.72 = 7,233,676.47 : x - Step 2: Convert to fraction form
13,345,379.19/18,416,129.72 = 7,233,676.47/x - Step 3: Cross multiply
13,345,379.19x = 18,416,129.72 × 7,233,676.47 - Step 4: Simplify right side
13,345,379.19x = 133,216,324,187,863.30 - Step 5: Solve for x
x = 133,216,324,187,863.30/13,345,379.19 - Step 6: Final answer
x = 9,982,206.00
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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.