Finding the Fourth Proportional to 7,400,639.26, 11,102,543.46 and 2,213,656.20
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Solution
The fourth proportional to 7,400,639.26, 11,102,543.46 and 2,213,656.20 is: 3,320,958.27
Step by Step Solution
- Step 1: Write the proportion equation
7,400,639.26 : 11,102,543.46 = 2,213,656.20 : x - Step 2: Convert to fraction form
7,400,639.26/11,102,543.46 = 2,213,656.20/x - Step 3: Cross multiply
7,400,639.26x = 11,102,543.46 × 2,213,656.20 - Step 4: Simplify right side
7,400,639.26x = 24,577,214,165,998.46 - Step 5: Solve for x
x = 24,577,214,165,998.46/7,400,639.26 - Step 6: Final answer
x = 3,320,958.27
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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.