Finding the Fourth Proportional to 443,839,961.08, 611,997,915.18 and 331,972,293.97
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Solution
The fourth proportional to 443,839,961.08, 611,997,915.18 and 331,972,293.97 is: 457,746,867.39
Step by Step Solution
- Step 1: Write the proportion equation
443,839,961.08 : 611,997,915.18 = 331,972,293.97 : x - Step 2: Convert to fraction form
443,839,961.08/611,997,915.18 = 331,972,293.97/x - Step 3: Cross multiply
443,839,961.08x = 611,997,915.18 × 331,972,293.97 - Step 4: Simplify right side
443,839,961.08x = 203,166,351,807,162,080 - Step 5: Solve for x
x = 203,166,351,807,162,080/443,839,961.08 - Step 6: Final answer
x = 457,746,867.39
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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.