Finding the Fourth Proportional to 117,512,186.80, 176,268,280.20 and 81,232,481.20
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Solution
The fourth proportional to 117,512,186.80, 176,268,280.20 and 81,232,481.20 is: 121,848,721.80
Step by Step Solution
- Step 1: Write the proportion equation
117,512,186.80 : 176,268,280.20 = 81,232,481.20 : x - Step 2: Convert to fraction form
117,512,186.80/176,268,280.20 = 81,232,481.20/x - Step 3: Cross multiply
117,512,186.80x = 176,268,280.20 × 81,232,481.20 - Step 4: Simplify right side
117,512,186.80x = 14,318,709,757,502,832 - Step 5: Solve for x
x = 14,318,709,757,502,832/117,512,186.80 - Step 6: Final answer
x = 121,848,721.80
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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.