Finding the Fourth Proportional to 8,653,313.65, 11,945,249.73 and 5,391,739.84
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Solution
The fourth proportional to 8,653,313.65, 11,945,249.73 and 5,391,739.84 is: 7,442,891.99
Step by Step Solution
- Step 1: Write the proportion equation
8,653,313.65 : 11,945,249.73 = 5,391,739.84 : x - Step 2: Convert to fraction form
8,653,313.65/11,945,249.73 = 5,391,739.84/x - Step 3: Cross multiply
8,653,313.65x = 11,945,249.73 × 5,391,739.84 - Step 4: Simplify right side
8,653,313.65x = 64,405,678,867,990.24 - Step 5: Solve for x
x = 64,405,678,867,990.24/8,653,313.65 - Step 6: Final answer
x = 7,442,891.99
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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.