Finding the Fourth Proportional to 11,721,735.18, 16,176,571.20 and 7,075,446.48
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Solution
The fourth proportional to 11,721,735.18, 16,176,571.20 and 7,075,446.48 is: 9,764,464.22
Step by Step Solution
- Step 1: Write the proportion equation
11,721,735.18 : 16,176,571.20 = 7,075,446.48 : x - Step 2: Convert to fraction form
11,721,735.18/16,176,571.20 = 7,075,446.48/x - Step 3: Cross multiply
11,721,735.18x = 16,176,571.20 × 7,075,446.48 - Step 4: Simplify right side
11,721,735.18x = 114,456,463,755,509.38 - Step 5: Solve for x
x = 114,456,463,755,509.38/11,721,735.18 - Step 6: Final answer
x = 9,764,464.22
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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.