Finding the Fourth Proportional to 14,508,420.66, 20,021,619.84 and 7,981,910.12
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Solution
The fourth proportional to 14,508,420.66, 20,021,619.84 and 7,981,910.12 is: 11,015,035.60
Step by Step Solution
- Step 1: Write the proportion equation
14,508,420.66 : 20,021,619.84 = 7,981,910.12 : x - Step 2: Convert to fraction form
14,508,420.66/20,021,619.84 = 7,981,910.12/x - Step 3: Cross multiply
14,508,420.66x = 20,021,619.84 × 7,981,910.12 - Step 4: Simplify right side
14,508,420.66x = 159,810,770,019,688.78 - Step 5: Solve for x
x = 159,810,770,019,688.78/14,508,420.66 - Step 6: Final answer
x = 11,015,035.60
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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.