Finding the Fourth Proportional to 66,609,396.43, 91,896,571.77 and 40,153,599.04
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Solution
The fourth proportional to 66,609,396.43, 91,896,571.77 and 40,153,599.04 is: 55,397,260.65
Step by Step Solution
- Step 1: Write the proportion equation
66,609,396.43 : 91,896,571.77 = 40,153,599.04 : x - Step 2: Convert to fraction form
66,609,396.43/91,896,571.77 = 40,153,599.04/x - Step 3: Cross multiply
66,609,396.43x = 91,896,571.77 × 40,153,599.04 - Step 4: Simplify right side
66,609,396.43x = 3,689,978,096,003,163 - Step 5: Solve for x
x = 3,689,978,096,003,163/66,609,396.43 - Step 6: Final answer
x = 55,397,260.65
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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.