Finding the Fourth Proportional to 11,921,425.86, 17,884,805.08 and 4,348,391.60
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Solution
The fourth proportional to 11,921,425.86, 17,884,805.08 and 4,348,391.60 is: 6,523,559.94
Step by Step Solution
- Step 1: Write the proportion equation
11,921,425.86 : 17,884,805.08 = 4,348,391.60 : x - Step 2: Convert to fraction form
11,921,425.86/17,884,805.08 = 4,348,391.60/x - Step 3: Cross multiply
11,921,425.86x = 17,884,805.08 × 4,348,391.60 - Step 4: Simplify right side
11,921,425.86x = 77,770,136,177,509.31 - Step 5: Solve for x
x = 77,770,136,177,509.31/11,921,425.86 - Step 6: Final answer
x = 6,523,559.94
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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.