Finding the Fourth Proportional to 102,721,286.67, 141,754,855.84 and 55,678,170.66
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Solution
The fourth proportional to 102,721,286.67, 141,754,855.84 and 55,678,170.66 is: 76,835,593.78
Step by Step Solution
- Step 1: Write the proportion equation
102,721,286.67 : 141,754,855.84 = 55,678,170.66 : x - Step 2: Convert to fraction form
102,721,286.67/141,754,855.84 = 55,678,170.66/x - Step 3: Cross multiply
102,721,286.67x = 141,754,855.84 × 55,678,170.66 - Step 4: Simplify right side
102,721,286.67x = 7,892,651,055,343,217 - Step 5: Solve for x
x = 7,892,651,055,343,217/102,721,286.67 - Step 6: Final answer
x = 76,835,593.78
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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.