Finding the Fourth Proportional to 19,505,890.75, 26,918,128.74 and 10,804,623.91
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Solution
The fourth proportional to 19,505,890.75, 26,918,128.74 and 10,804,623.91 is: 14,910,380.72
Step by Step Solution
- Step 1: Write the proportion equation
19,505,890.75 : 26,918,128.74 = 10,804,623.91 : x - Step 2: Convert to fraction form
19,505,890.75/26,918,128.74 = 10,804,623.91/x - Step 3: Cross multiply
19,505,890.75x = 26,918,128.74 × 10,804,623.91 - Step 4: Simplify right side
19,505,890.75x = 290,840,257,396,662.19 - Step 5: Solve for x
x = 290,840,257,396,662.19/19,505,890.75 - Step 6: Final answer
x = 14,910,380.72
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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.