Finding the Fourth Proportional to 207,902,076.48, 286,901,383.20 and 115,080,586.56
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Solution
The fourth proportional to 207,902,076.48, 286,901,383.20 and 115,080,586.56 is: 158,809,281.86
Step by Step Solution
- Step 1: Write the proportion equation
207,902,076.48 : 286,901,383.20 = 115,080,586.56 : x - Step 2: Convert to fraction form
207,902,076.48/286,901,383.20 = 115,080,586.56/x - Step 3: Cross multiply
207,902,076.48x = 286,901,383.20 × 115,080,586.56 - Step 4: Simplify right side
207,902,076.48x = 33,016,779,463,531,328 - Step 5: Solve for x
x = 33,016,779,463,531,328/207,902,076.48 - Step 6: Final answer
x = 158,809,281.86
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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.