Finding the Fourth Proportional to 491,273,142.12, 677,960,213.70 and 268,256,372.28
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Solution
The fourth proportional to 491,273,142.12, 677,960,213.70 and 268,256,372.28 is: 370,195,583.44
Step by Step Solution
- Step 1: Write the proportion equation
491,273,142.12 : 677,960,213.70 = 268,256,372.28 : x - Step 2: Convert to fraction form
491,273,142.12/677,960,213.70 = 268,256,372.28/x - Step 3: Cross multiply
491,273,142.12x = 677,960,213.70 × 268,256,372.28 - Step 4: Simplify right side
491,273,142.12x = 181,867,147,477,335,584 - Step 5: Solve for x
x = 181,867,147,477,335,584/491,273,142.12 - Step 6: Final answer
x = 370,195,583.44
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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.