Finding the Fourth Proportional to 373,438,760.26, 515,390,679.15 and 212,541,863.48
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Solution
The fourth proportional to 373,438,760.26, 515,390,679.15 and 212,541,863.48 is: 293,333,491.39
Step by Step Solution
- Step 1: Write the proportion equation
373,438,760.26 : 515,390,679.15 = 212,541,863.48 : x - Step 2: Convert to fraction form
373,438,760.26/515,390,679.15 = 212,541,863.48/x - Step 3: Cross multiply
373,438,760.26x = 515,390,679.15 × 212,541,863.48 - Step 4: Simplify right side
373,438,760.26x = 109,542,095,365,701,056 - Step 5: Solve for x
x = 109,542,095,365,701,056/373,438,760.26 - Step 6: Final answer
x = 293,333,491.39
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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.