Finding the Fourth Proportional to 207,910,109,071.29, 286,917,635,146.15 and 115,212,511,960.65
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Solution
The fourth proportional to 207,910,109,071.29, 286,917,635,146.15 and 115,212,511,960.65 is: 158,994,200,035.09
Step by Step Solution
- Step 1: Write the proportion equation
207,910,109,071.29 : 286,917,635,146.15 = 115,212,511,960.65 : x - Step 2: Convert to fraction form
207,910,109,071.29/286,917,635,146.15 = 115,212,511,960.65/x - Step 3: Cross multiply
207,910,109,071.29x = 286,917,635,146.15 × 115,212,511,960.65 - Step 4: Simplify right side
207,910,109,071.29x = 33,056,501,470,997,220,687,872 - Step 5: Solve for x
x = 33,056,501,470,997,220,687,872/207,910,109,071.29 - Step 6: Final answer
x = 158,994,200,035.09
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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.