Finding the Fourth Proportional to 13,761,537.42, 18,991,409.09 and 7,567,055.84
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Solution
The fourth proportional to 13,761,537.42, 18,991,409.09 and 7,567,055.84 is: 10,442,805.09
Step by Step Solution
- Step 1: Write the proportion equation
13,761,537.42 : 18,991,409.09 = 7,567,055.84 : x - Step 2: Convert to fraction form
13,761,537.42/18,991,409.09 = 7,567,055.84/x - Step 3: Cross multiply
13,761,537.42x = 18,991,409.09 × 7,567,055.84 - Step 4: Simplify right side
13,761,537.42x = 143,709,053,116,521.53 - Step 5: Solve for x
x = 143,709,053,116,521.53/13,761,537.42 - Step 6: Final answer
x = 10,442,805.09
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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.