Finding the Fourth Proportional to 157,511,715.48, 217,366,173 and 86,947,344
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Solution
The fourth proportional to 157,511,715.48, 217,366,173 and 86,947,344 is: 119,987,337.83
Step by Step Solution
- Step 1: Write the proportion equation
157,511,715.48 : 217,366,173 = 86,947,344 : x - Step 2: Convert to fraction form
157,511,715.48/217,366,173 = 86,947,344/x - Step 3: Cross multiply
157,511,715.48x = 217,366,173 × 86,947,344 - Step 4: Simplify right side
157,511,715.48x = 18,899,411,417,794,512 - Step 5: Solve for x
x = 18,899,411,417,794,512/157,511,715.48 - Step 6: Final answer
x = 119,987,337.83
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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.