Finding the Fourth Proportional to 13,721,377.42, 18,936,362.97 and 7,609,805.98
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Solution
The fourth proportional to 13,721,377.42, 18,936,362.97 and 7,609,805.98 is: 10,502,010.39
Step by Step Solution
- Step 1: Write the proportion equation
13,721,377.42 : 18,936,362.97 = 7,609,805.98 : x - Step 2: Convert to fraction form
13,721,377.42/18,936,362.97 = 7,609,805.98/x - Step 3: Cross multiply
13,721,377.42x = 18,936,362.97 × 7,609,805.98 - Step 4: Simplify right side
13,721,377.42x = 144,102,048,168,556.56 - Step 5: Solve for x
x = 144,102,048,168,556.56/13,721,377.42 - Step 6: Final answer
x = 10,502,010.39
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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.