Finding the Fourth Proportional to 145,449,364.94, 200,724,382.70 and 79,374,120.99
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Solution
The fourth proportional to 145,449,364.94, 200,724,382.70 and 79,374,120.99 is: 109,538,611.22
Step by Step Solution
- Step 1: Write the proportion equation
145,449,364.94 : 200,724,382.70 = 79,374,120.99 : x - Step 2: Convert to fraction form
145,449,364.94/200,724,382.70 = 79,374,120.99/x - Step 3: Cross multiply
145,449,364.94x = 200,724,382.70 × 79,374,120.99 - Step 4: Simplify right side
145,449,364.94x = 15,932,321,437,675,990 - Step 5: Solve for x
x = 15,932,321,437,675,990/145,449,364.94 - Step 6: Final answer
x = 109,538,611.22
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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.