Finding the Fourth Proportional to 20,412,495.99, 30,578,650.29 and 13,474,837.94
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Solution
The fourth proportional to 20,412,495.99, 30,578,650.29 and 13,474,837.94 is: 20,185,789.98
Step by Step Solution
- Step 1: Write the proportion equation
20,412,495.99 : 30,578,650.29 = 13,474,837.94 : x - Step 2: Convert to fraction form
20,412,495.99/30,578,650.29 = 13,474,837.94/x - Step 3: Cross multiply
20,412,495.99x = 30,578,650.29 × 13,474,837.94 - Step 4: Simplify right side
20,412,495.99x = 412,042,356,928,790.75 - Step 5: Solve for x
x = 412,042,356,928,790.75/20,412,495.99 - Step 6: Final answer
x = 20,185,789.98
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.