Finding the Fourth Proportional to 28,190,126.44, 38,903,441.84 and 15,800,446.84
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Solution
The fourth proportional to 28,190,126.44, 38,903,441.84 and 15,800,446.84 is: 21,805,214.89
Step by Step Solution
- Step 1: Write the proportion equation
28,190,126.44 : 38,903,441.84 = 15,800,446.84 : x - Step 2: Convert to fraction form
28,190,126.44/38,903,441.84 = 15,800,446.84/x - Step 3: Cross multiply
28,190,126.44x = 38,903,441.84 × 15,800,446.84 - Step 4: Simplify right side
28,190,126.44x = 614,691,764,685,951.88 - Step 5: Solve for x
x = 614,691,764,685,951.88/28,190,126.44 - Step 6: Final answer
x = 21,805,214.89
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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.