Finding the Fourth Proportional to 8,163,556.68, 11,261,938.68 and 5,263,878.90
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Solution
The fourth proportional to 8,163,556.68, 11,261,938.68 and 5,263,878.90 is: 7,261,722.28
Step by Step Solution
- Step 1: Write the proportion equation
8,163,556.68 : 11,261,938.68 = 5,263,878.90 : x - Step 2: Convert to fraction form
8,163,556.68/11,261,938.68 = 5,263,878.90/x - Step 3: Cross multiply
8,163,556.68x = 11,261,938.68 × 5,263,878.90 - Step 4: Simplify right side
8,163,556.68x = 59,281,481,390,745.85 - Step 5: Solve for x
x = 59,281,481,390,745.85/8,163,556.68 - Step 6: Final answer
x = 7,261,722.28
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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.