Finding the Fourth Proportional to 397,318,659.68, 548,351,961.22 and 227,839,221.08
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Solution
The fourth proportional to 397,318,659.68, 548,351,961.22 and 227,839,221.08 is: 314,448,064.99
Step by Step Solution
- Step 1: Write the proportion equation
397,318,659.68 : 548,351,961.22 = 227,839,221.08 : x - Step 2: Convert to fraction form
397,318,659.68/548,351,961.22 = 227,839,221.08/x - Step 3: Cross multiply
397,318,659.68x = 548,351,961.22 × 227,839,221.08 - Step 4: Simplify right side
397,318,659.68x = 124,936,083,721,654,544 - Step 5: Solve for x
x = 124,936,083,721,654,544/397,318,659.68 - Step 6: Final answer
x = 314,448,064.99
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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.