Finding the Fourth Proportional to 13,674,342.36, 18,870,876.54 and 7,563,183.96
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Solution
The fourth proportional to 13,674,342.36, 18,870,876.54 and 7,563,183.96 is: 10,437,350.99
Step by Step Solution
- Step 1: Write the proportion equation
13,674,342.36 : 18,870,876.54 = 7,563,183.96 : x - Step 2: Convert to fraction form
13,674,342.36/18,870,876.54 = 7,563,183.96/x - Step 3: Cross multiply
13,674,342.36x = 18,870,876.54 × 7,563,183.96 - Step 4: Simplify right side
13,674,342.36x = 142,723,910,758,468.28 - Step 5: Solve for x
x = 142,723,910,758,468.28/13,674,342.36 - Step 6: Final answer
x = 10,437,350.99
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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.