Finding the Fourth Proportional to 19,853,759.68, 27,393,938.32 and 11,590,071.36
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Solution
The fourth proportional to 19,853,759.68, 27,393,938.32 and 11,590,071.36 is: 15,991,817.42
Step by Step Solution
- Step 1: Write the proportion equation
19,853,759.68 : 27,393,938.32 = 11,590,071.36 : x - Step 2: Convert to fraction form
19,853,759.68/27,393,938.32 = 11,590,071.36/x - Step 3: Cross multiply
19,853,759.68x = 27,393,938.32 × 11,590,071.36 - Step 4: Simplify right side
19,853,759.68x = 317,497,699,960,238.50 - Step 5: Solve for x
x = 317,497,699,960,238.50/19,853,759.68 - Step 6: Final answer
x = 15,991,817.42
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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.