Finding the Fourth Proportional to 231,502,057.36, 319,471,578.12 and 127,081,905.68
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Solution
The fourth proportional to 231,502,057.36, 319,471,578.12 and 127,081,905.68 is: 175,372,337.60
Step by Step Solution
- Step 1: Write the proportion equation
231,502,057.36 : 319,471,578.12 = 127,081,905.68 : x - Step 2: Convert to fraction form
231,502,057.36/319,471,578.12 = 127,081,905.68/x - Step 3: Cross multiply
231,502,057.36x = 319,471,578.12 × 127,081,905.68 - Step 4: Simplify right side
231,502,057.36x = 40,599,056,958,086,592 - Step 5: Solve for x
x = 40,599,056,958,086,592/231,502,057.36 - Step 6: Final answer
x = 175,372,337.60
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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.