Finding the Fourth Proportional to 151,311,988.05, 208,804,091.88 and 84,327,381.84
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Solution
The fourth proportional to 151,311,988.05, 208,804,091.88 and 84,327,381.84 is: 116,368,191.39
Step by Step Solution
- Step 1: Write the proportion equation
151,311,988.05 : 208,804,091.88 = 84,327,381.84 : x - Step 2: Convert to fraction form
151,311,988.05/208,804,091.88 = 84,327,381.84/x - Step 3: Cross multiply
151,311,988.05x = 208,804,091.88 × 84,327,381.84 - Step 4: Simplify right side
151,311,988.05x = 17,607,902,385,719,204 - Step 5: Solve for x
x = 17,607,902,385,719,204/151,311,988.05 - Step 6: Final answer
x = 116,368,191.39
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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.