Finding the Fourth Proportional to 13,293,578.91, 18,345,218.88 and 7,413,584.31
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Solution
The fourth proportional to 13,293,578.91, 18,345,218.88 and 7,413,584.31 is: 10,230,790.95
Step by Step Solution
- Step 1: Write the proportion equation
13,293,578.91 : 18,345,218.88 = 7,413,584.31 : x - Step 2: Convert to fraction form
13,293,578.91/18,345,218.88 = 7,413,584.31/x - Step 3: Cross multiply
13,293,578.91x = 18,345,218.88 × 7,413,584.31 - Step 4: Simplify right side
13,293,578.91x = 136,003,826,852,283.75 - Step 5: Solve for x
x = 136,003,826,852,283.75/13,293,578.91 - Step 6: Final answer
x = 10,230,790.95
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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.