Finding the Fourth Proportional to 13,260,668.80, 18,288,805.44 and 7,822,912
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Solution
The fourth proportional to 13,260,668.80, 18,288,805.44 and 7,822,912 is: 10,789,177.96
Step by Step Solution
- Step 1: Write the proportion equation
13,260,668.80 : 18,288,805.44 = 7,822,912 : x - Step 2: Convert to fraction form
13,260,668.80/18,288,805.44 = 7,822,912/x - Step 3: Cross multiply
13,260,668.80x = 18,288,805.44 × 7,822,912 - Step 4: Simplify right side
13,260,668.80x = 143,071,715,542,241.28 - Step 5: Solve for x
x = 143,071,715,542,241.28/13,260,668.80 - Step 6: Final answer
x = 10,789,177.96
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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.