Finding the Fourth Proportional to 305,760,899.68, 421,924,122.36 and 171,788,326.96
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Solution
The fourth proportional to 305,760,899.68, 421,924,122.36 and 171,788,326.96 is: 237,053,328.79
Step by Step Solution
- Step 1: Write the proportion equation
305,760,899.68 : 421,924,122.36 = 171,788,326.96 : x - Step 2: Convert to fraction form
305,760,899.68/421,924,122.36 = 171,788,326.96/x - Step 3: Cross multiply
305,760,899.68x = 421,924,122.36 × 171,788,326.96 - Step 4: Simplify right side
305,760,899.68x = 72,481,639,084,290,736 - Step 5: Solve for x
x = 72,481,639,084,290,736/305,760,899.68 - Step 6: Final answer
x = 237,053,328.79
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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.