Finding the Fourth Proportional to 256,344,538.80, 384,527,305.80 and 74,591,716.80
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Solution
The fourth proportional to 256,344,538.80, 384,527,305.80 and 74,591,716.80 is: 111,890,629.82
Step by Step Solution
- Step 1: Write the proportion equation
256,344,538.80 : 384,527,305.80 = 74,591,716.80 : x - Step 2: Convert to fraction form
256,344,538.80/384,527,305.80 = 74,591,716.80/x - Step 3: Cross multiply
256,344,538.80x = 384,527,305.80 × 74,591,716.80 - Step 4: Simplify right side
256,344,538.80x = 28,682,551,896,100,596 - Step 5: Solve for x
x = 28,682,551,896,100,596/256,344,538.80 - Step 6: Final answer
x = 111,890,629.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.