Finding the Fourth Proportional to 21,409,206.86, 29,544,734.68 and 11,619,651.15
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Solution
The fourth proportional to 21,409,206.86, 29,544,734.68 and 11,619,651.15 is: 16,035,134.44
Step by Step Solution
- Step 1: Write the proportion equation
21,409,206.86 : 29,544,734.68 = 11,619,651.15 : x - Step 2: Convert to fraction form
21,409,206.86/29,544,734.68 = 11,619,651.15/x - Step 3: Cross multiply
21,409,206.86x = 29,544,734.68 × 11,619,651.15 - Step 4: Simplify right side
21,409,206.86x = 343,299,510,271,857.75 - Step 5: Solve for x
x = 343,299,510,271,857.75/21,409,206.86 - Step 6: Final answer
x = 16,035,134.44
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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.