Finding the Fourth Proportional to 18,376,910.70, 27,565,366.05 and 13,593,941.70
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Solution
The fourth proportional to 18,376,910.70, 27,565,366.05 and 13,593,941.70 is: 20,390,912.55
Step by Step Solution
- Step 1: Write the proportion equation
18,376,910.70 : 27,565,366.05 = 13,593,941.70 : x - Step 2: Convert to fraction form
18,376,910.70/27,565,366.05 = 13,593,941.70/x - Step 3: Cross multiply
18,376,910.70x = 27,565,366.05 × 13,593,941.70 - Step 4: Simplify right side
18,376,910.70x = 374,721,979,022,859.25 - Step 5: Solve for x
x = 374,721,979,022,859.25/18,376,910.70 - Step 6: Final answer
x = 20,390,912.55
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.