Finding the Fourth Proportional to 11,770,965.36, 16,243,409.52 and 6,876,640.80
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Solution
The fourth proportional to 11,770,965.36, 16,243,409.52 and 6,876,640.80 is: 9,489,458.95
Step by Step Solution
- Step 1: Write the proportion equation
11,770,965.36 : 16,243,409.52 = 6,876,640.80 : x - Step 2: Convert to fraction form
11,770,965.36/16,243,409.52 = 6,876,640.80/x - Step 3: Cross multiply
11,770,965.36x = 16,243,409.52 × 6,876,640.80 - Step 4: Simplify right side
11,770,965.36x = 111,700,092,636,340.41 - Step 5: Solve for x
x = 111,700,092,636,340.41/11,770,965.36 - Step 6: Final answer
x = 9,489,458.95
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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.