Finding the Fourth Proportional to 198,220,155.96, 273,551,571.18 and 135,627,531.96
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Solution
The fourth proportional to 198,220,155.96, 273,551,571.18 and 135,627,531.96 is: 187,171,300.94
Step by Step Solution
- Step 1: Write the proportion equation
198,220,155.96 : 273,551,571.18 = 135,627,531.96 : x - Step 2: Convert to fraction form
198,220,155.96/273,551,571.18 = 135,627,531.96/x - Step 3: Cross multiply
198,220,155.96x = 273,551,571.18 × 135,627,531.96 - Step 4: Simplify right side
198,220,155.96x = 37,101,124,462,923,672 - Step 5: Solve for x
x = 37,101,124,462,923,672/198,220,155.96 - Step 6: Final answer
x = 187,171,300.94
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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.