Finding the Fourth Proportional to 685,093,717.98, 945,430,266.33 and 371,827,936.26
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Solution
The fourth proportional to 685,093,717.98, 945,430,266.33 and 371,827,936.26 is: 513,123,059.78
Step by Step Solution
- Step 1: Write the proportion equation
685,093,717.98 : 945,430,266.33 = 371,827,936.26 : x - Step 2: Convert to fraction form
685,093,717.98/945,430,266.33 = 371,827,936.26/x - Step 3: Cross multiply
685,093,717.98x = 945,430,266.33 × 371,827,936.26 - Step 4: Simplify right side
685,093,717.98x = 351,537,384,807,226,048 - Step 5: Solve for x
x = 351,537,384,807,226,048/685,093,717.98 - Step 6: Final answer
x = 513,123,059.78
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1.5x scale
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.