Finding the Fourth Proportional to 14,569,553.79, 20,106,147.11 and 8,043,186.69
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Solution
The fourth proportional to 14,569,553.79, 20,106,147.11 and 8,043,186.69 is: 11,099,687.55
Step by Step Solution
- Step 1: Write the proportion equation
14,569,553.79 : 20,106,147.11 = 8,043,186.69 : x - Step 2: Convert to fraction form
14,569,553.79/20,106,147.11 = 8,043,186.69/x - Step 3: Cross multiply
14,569,553.79x = 20,106,147.11 × 8,043,186.69 - Step 4: Simplify right side
14,569,553.79x = 161,717,494,782,118.03 - Step 5: Solve for x
x = 161,717,494,782,118.03/14,569,553.79 - Step 6: Final answer
x = 11,099,687.55
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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.