Finding the Fourth Proportional to 13,048,221.56, 18,006,546.33 and 7,247,543.05
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Solution
The fourth proportional to 13,048,221.56, 18,006,546.33 and 7,247,543.05 is: 10,001,609.72
Step by Step Solution
- Step 1: Write the proportion equation
13,048,221.56 : 18,006,546.33 = 7,247,543.05 : x - Step 2: Convert to fraction form
13,048,221.56/18,006,546.33 = 7,247,543.05/x - Step 3: Cross multiply
13,048,221.56x = 18,006,546.33 × 7,247,543.05 - Step 4: Simplify right side
13,048,221.56x = 130,503,219,582,224.05 - Step 5: Solve for x
x = 130,503,219,582,224.05/13,048,221.56 - Step 6: Final answer
x = 10,001,609.72
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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.