Finding the Fourth Proportional to 15,622,716.91, 21,559,571.90 and 9,007,174.49
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Solution
The fourth proportional to 15,622,716.91, 21,559,571.90 and 9,007,174.49 is: 12,430,029.12
Step by Step Solution
- Step 1: Write the proportion equation
15,622,716.91 : 21,559,571.90 = 9,007,174.49 : x - Step 2: Convert to fraction form
15,622,716.91/21,559,571.90 = 9,007,174.49/x - Step 3: Cross multiply
15,622,716.91x = 21,559,571.90 × 9,007,174.49 - Step 4: Simplify right side
15,622,716.91x = 194,190,826,070,515.72 - Step 5: Solve for x
x = 194,190,826,070,515.72/15,622,716.91 - Step 6: Final answer
x = 12,430,029.12
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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.