Finding the Fourth Proportional to 18,639,998.68, 27,946,999.16 and 8,259,571.99
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Solution
The fourth proportional to 18,639,998.68, 27,946,999.16 and 8,259,571.99 is: 12,383,598.06
Step by Step Solution
- Step 1: Write the proportion equation
18,639,998.68 : 27,946,999.16 = 8,259,571.99 : x - Step 2: Convert to fraction form
18,639,998.68/27,946,999.16 = 8,259,571.99/x - Step 3: Cross multiply
18,639,998.68x = 27,946,999.16 × 8,259,571.99 - Step 4: Simplify right side
18,639,998.68x = 230,830,251,466,489.53 - Step 5: Solve for x
x = 230,830,251,466,489.53/18,639,998.68 - Step 6: Final answer
x = 12,383,598.06
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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.