Finding the Fourth Proportional to 215,631,004.88, 297,623,687.64 and 122,866,338.08
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Solution
The fourth proportional to 215,631,004.88, 297,623,687.64 and 122,866,338.08 is: 169,585,689.44
Step by Step Solution
- Step 1: Write the proportion equation
215,631,004.88 : 297,623,687.64 = 122,866,338.08 : x - Step 2: Convert to fraction form
215,631,004.88/297,623,687.64 = 122,866,338.08/x - Step 3: Cross multiply
215,631,004.88x = 297,623,687.64 × 122,866,338.08 - Step 4: Simplify right side
215,631,004.88x = 36,567,932,626,192,552 - Step 5: Solve for x
x = 36,567,932,626,192,552/215,631,004.88 - Step 6: Final answer
x = 169,585,689.44
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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.