Finding the Fourth Proportional to 98,631,086.24, 135,999,514.32 and 73,771,604.66
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Solution
The fourth proportional to 98,631,086.24, 135,999,514.32 and 73,771,604.66 is: 101,721,503.70
Step by Step Solution
- Step 1: Write the proportion equation
98,631,086.24 : 135,999,514.32 = 73,771,604.66 : x - Step 2: Convert to fraction form
98,631,086.24/135,999,514.32 = 73,771,604.66/x - Step 3: Cross multiply
98,631,086.24x = 135,999,514.32 × 73,771,604.66 - Step 4: Simplify right side
98,631,086.24x = 10,032,902,404,367,048 - Step 5: Solve for x
x = 10,032,902,404,367,048/98,631,086.24 - Step 6: Final answer
x = 101,721,503.70
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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.