Finding the Fourth Proportional to 5,361,761.75, 7,399,280.73 and 2,914,378.55
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Solution
The fourth proportional to 5,361,761.75, 7,399,280.73 and 2,914,378.55 is: 4,021,869.31
Step by Step Solution
- Step 1: Write the proportion equation
5,361,761.75 : 7,399,280.73 = 2,914,378.55 : x - Step 2: Convert to fraction form
5,361,761.75/7,399,280.73 = 2,914,378.55/x - Step 3: Cross multiply
5,361,761.75x = 7,399,280.73 × 2,914,378.55 - Step 4: Simplify right side
5,361,761.75x = 21,564,305,007,943.94 - Step 5: Solve for x
x = 21,564,305,007,943.94/5,361,761.75 - Step 6: Final answer
x = 4,021,869.31
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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.