Finding the Fourth Proportional to 151,633,471.26, 209,236,207.68 and 85,550,116.98
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Solution
The fourth proportional to 151,633,471.26, 209,236,207.68 and 85,550,116.98 is: 118,049,015.79
Step by Step Solution
- Step 1: Write the proportion equation
151,633,471.26 : 209,236,207.68 = 85,550,116.98 : x - Step 2: Convert to fraction form
151,633,471.26/209,236,207.68 = 85,550,116.98/x - Step 3: Cross multiply
151,633,471.26x = 209,236,207.68 × 85,550,116.98 - Step 4: Simplify right side
151,633,471.26x = 17,900,182,043,475,576 - Step 5: Solve for x
x = 17,900,182,043,475,576/151,633,471.26 - Step 6: Final answer
x = 118,049,015.79
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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.