Finding the Fourth Proportional to 387,747,249.68, 535,088,664.60 and 220,483,523.12
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Solution
The fourth proportional to 387,747,249.68, 535,088,664.60 and 220,483,523.12 is: 304,265,817.62
Step by Step Solution
- Step 1: Write the proportion equation
387,747,249.68 : 535,088,664.60 = 220,483,523.12 : x - Step 2: Convert to fraction form
387,747,249.68/535,088,664.60 = 220,483,523.12/x - Step 3: Cross multiply
387,747,249.68x = 535,088,664.60 × 220,483,523.12 - Step 4: Simplify right side
387,747,249.68x = 117,978,233,952,584,032 - Step 5: Solve for x
x = 117,978,233,952,584,032/387,747,249.68 - Step 6: Final answer
x = 304,265,817.62
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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.