Finding the Fourth Proportional to 77,121,857.34, 106,428,369.42 and 41,839,662.36
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Solution
The fourth proportional to 77,121,857.34, 106,428,369.42 and 41,839,662.36 is: 57,738,845.97
Step by Step Solution
- Step 1: Write the proportion equation
77,121,857.34 : 106,428,369.42 = 41,839,662.36 : x - Step 2: Convert to fraction form
77,121,857.34/106,428,369.42 = 41,839,662.36/x - Step 3: Cross multiply
77,121,857.34x = 106,428,369.42 × 41,839,662.36 - Step 4: Simplify right side
77,121,857.34x = 4,452,927,042,058,149 - Step 5: Solve for x
x = 4,452,927,042,058,149/77,121,857.34 - Step 6: Final answer
x = 57,738,845.97
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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.