Finding the Fourth Proportional to 13,643,010.72, 18,827,239.32 and 7,531,308
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Solution
The fourth proportional to 13,643,010.72, 18,827,239.32 and 7,531,308 is: 10,393,141.30
Step by Step Solution
- Step 1: Write the proportion equation
13,643,010.72 : 18,827,239.32 = 7,531,308 : x - Step 2: Convert to fraction form
13,643,010.72/18,827,239.32 = 7,531,308/x - Step 3: Cross multiply
13,643,010.72x = 18,827,239.32 × 7,531,308 - Step 4: Simplify right side
13,643,010.72x = 141,793,738,108,630.56 - Step 5: Solve for x
x = 141,793,738,108,630.56/13,643,010.72 - Step 6: Final answer
x = 10,393,141.30
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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.