Finding the Fourth Proportional to 7,690,619.87, 11,532,379.10 and 2,831,706.08
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Solution
The fourth proportional to 7,690,619.87, 11,532,379.10 and 2,831,706.08 is: 4,246,251.73
Step by Step Solution
- Step 1: Write the proportion equation
7,690,619.87 : 11,532,379.10 = 2,831,706.08 : x - Step 2: Convert to fraction form
7,690,619.87/11,532,379.10 = 2,831,706.08/x - Step 3: Cross multiply
7,690,619.87x = 11,532,379.10 × 2,831,706.08 - Step 4: Simplify right side
7,690,619.87x = 32,656,307,942,514.51 - Step 5: Solve for x
x = 32,656,307,942,514.51/7,690,619.87 - Step 6: Final answer
x = 4,246,251.73
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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.