Finding the Fourth Proportional to 88,931,830.62, 122,729,761.81 and 49,239,361.03
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Solution
The fourth proportional to 88,931,830.62, 122,729,761.81 and 49,239,361.03 is: 67,952,441.87
Step by Step Solution
- Step 1: Write the proportion equation
88,931,830.62 : 122,729,761.81 = 49,239,361.03 : x - Step 2: Convert to fraction form
88,931,830.62/122,729,761.81 = 49,239,361.03/x - Step 3: Cross multiply
88,931,830.62x = 122,729,761.81 × 49,239,361.03 - Step 4: Simplify right side
88,931,830.62x = 6,043,135,050,888,497 - Step 5: Solve for x
x = 6,043,135,050,888,497/88,931,830.62 - Step 6: Final answer
x = 67,952,441.87
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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.