Finding the Fourth Proportional to 14,311,523.70, 21,413,115 and 8,478,842.09
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Solution
The fourth proportional to 14,311,523.70, 21,413,115 and 8,478,842.09 is: 12,686,169.86
Step by Step Solution
- Step 1: Write the proportion equation
14,311,523.70 : 21,413,115 = 8,478,842.09 : x - Step 2: Convert to fraction form
14,311,523.70/21,413,115 = 8,478,842.09/x - Step 3: Cross multiply
14,311,523.70x = 21,413,115 × 8,478,842.09 - Step 4: Simplify right side
14,311,523.70x = 181,558,420,632,944.78 - Step 5: Solve for x
x = 181,558,420,632,944.78/14,311,523.70 - Step 6: Final answer
x = 12,686,169.86
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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.