Finding the Fourth Proportional to 10,388,326.98, 14,335,640.99 and 5,678,513.13
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Solution
The fourth proportional to 10,388,326.98, 14,335,640.99 and 5,678,513.13 is: 7,836,211.33
Step by Step Solution
- Step 1: Write the proportion equation
10,388,326.98 : 14,335,640.99 = 5,678,513.13 : x - Step 2: Convert to fraction form
10,388,326.98/14,335,640.99 = 5,678,513.13/x - Step 3: Cross multiply
10,388,326.98x = 14,335,640.99 × 5,678,513.13 - Step 4: Simplify right side
10,388,326.98x = 81,405,125,560,288.62 - Step 5: Solve for x
x = 81,405,125,560,288.62/10,388,326.98 - Step 6: Final answer
x = 7,836,211.33
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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.