Finding the Fourth Proportional to 56,928,817.28, 85,412,121.60 and 18,591,582.08
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Solution
The fourth proportional to 56,928,817.28, 85,412,121.60 and 18,591,582.08 is: 27,893,543.99
Step by Step Solution
- Step 1: Write the proportion equation
56,928,817.28 : 85,412,121.60 = 18,591,582.08 : x - Step 2: Convert to fraction form
56,928,817.28/85,412,121.60 = 18,591,582.08/x - Step 3: Cross multiply
56,928,817.28x = 85,412,121.60 × 18,591,582.08 - Step 4: Simplify right side
56,928,817.28x = 1,587,946,469,353,340.75 - Step 5: Solve for x
x = 1,587,946,469,353,340.75/56,928,817.28 - Step 6: Final answer
x = 27,893,543.99
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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.