Finding the Fourth Proportional to 326,138,308.36, 449,899,355.74 and 193,885,229.84
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Solution
The fourth proportional to 326,138,308.36, 449,899,355.74 and 193,885,229.84 is: 267,459,656.71
Step by Step Solution
- Step 1: Write the proportion equation
326,138,308.36 : 449,899,355.74 = 193,885,229.84 : x - Step 2: Convert to fraction form
326,138,308.36/449,899,355.74 = 193,885,229.84/x - Step 3: Cross multiply
326,138,308.36x = 449,899,355.74 × 193,885,229.84 - Step 4: Simplify right side
326,138,308.36x = 87,228,839,992,517,824 - Step 5: Solve for x
x = 87,228,839,992,517,824/326,138,308.36 - Step 6: Final answer
x = 267,459,656.71
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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.