Finding the Fourth Proportional to 3,843,640.96, 5,731,560.64 and 3,809,037.49
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Solution
The fourth proportional to 3,843,640.96, 5,731,560.64 and 3,809,037.49 is: 5,679,960.64
Step by Step Solution
- Step 1: Write the proportion equation
3,843,640.96 : 5,731,560.64 = 3,809,037.49 : x - Step 2: Convert to fraction form
3,843,640.96/5,731,560.64 = 3,809,037.49/x - Step 3: Cross multiply
3,843,640.96x = 5,731,560.64 × 3,809,037.49 - Step 4: Simplify right side
3,843,640.96x = 21,831,729,344,400.79 - Step 5: Solve for x
x = 21,831,729,344,400.79/3,843,640.96 - Step 6: Final answer
x = 5,679,960.64
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.