Finding the Fourth Proportional to 770,311,845.05, 1,062,940,665.47 and 431,238,887.96
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Solution
The fourth proportional to 770,311,845.05, 1,062,940,665.47 and 431,238,887.96 is: 595,059,459.99
Step by Step Solution
- Step 1: Write the proportion equation
770,311,845.05 : 1,062,940,665.47 = 431,238,887.96 : x - Step 2: Convert to fraction form
770,311,845.05/1,062,940,665.47 = 431,238,887.96/x - Step 3: Cross multiply
770,311,845.05x = 1,062,940,665.47 × 431,238,887.96 - Step 4: Simplify right side
770,311,845.05x = 458,381,350,537,274,240 - Step 5: Solve for x
x = 458,381,350,537,274,240/770,311,845.05 - Step 6: Final answer
x = 595,059,459.99
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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.