Finding the Fourth Proportional to 13,085,743.97, 18,058,755.53 and 7,206,006.62
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Solution
The fourth proportional to 13,085,743.97, 18,058,755.53 and 7,206,006.62 is: 9,944,525.29
Step by Step Solution
- Step 1: Write the proportion equation
13,085,743.97 : 18,058,755.53 = 7,206,006.62 : x - Step 2: Convert to fraction form
13,085,743.97/18,058,755.53 = 7,206,006.62/x - Step 3: Cross multiply
13,085,743.97x = 18,058,755.53 × 7,206,006.62 - Step 4: Simplify right side
13,085,743.97x = 130,131,511,898,141.62 - Step 5: Solve for x
x = 130,131,511,898,141.62/13,085,743.97 - Step 6: Final answer
x = 9,944,525.29
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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.