Finding the Fourth Proportional to 149,512,993.38, 206,327,971.98 and 82,531,992.24
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Solution
The fourth proportional to 149,512,993.38, 206,327,971.98 and 82,531,992.24 is: 113,894,171.99
Step by Step Solution
- Step 1: Write the proportion equation
149,512,993.38 : 206,327,971.98 = 82,531,992.24 : x - Step 2: Convert to fraction form
149,512,993.38/206,327,971.98 = 82,531,992.24/x - Step 3: Cross multiply
149,512,993.38x = 206,327,971.98 × 82,531,992.24 - Step 4: Simplify right side
149,512,993.38x = 17,028,658,582,348,296 - Step 5: Solve for x
x = 17,028,658,582,348,296/149,512,993.38 - Step 6: Final answer
x = 113,894,171.99
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1.5x scale
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.