Finding the Fourth Proportional to 20,971,539.36, 31,469,536.80 and 8,840,260.08
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Solution
The fourth proportional to 20,971,539.36, 31,469,536.80 and 8,840,260.08 is: 13,265,544.56
Step by Step Solution
- Step 1: Write the proportion equation
20,971,539.36 : 31,469,536.80 = 8,840,260.08 : x - Step 2: Convert to fraction form
20,971,539.36/31,469,536.80 = 8,840,260.08/x - Step 3: Cross multiply
20,971,539.36x = 31,469,536.80 × 8,840,260.08 - Step 4: Simplify right side
20,971,539.36x = 278,198,889,909,130.94 - Step 5: Solve for x
x = 278,198,889,909,130.94/20,971,539.36 - Step 6: Final answer
x = 13,265,544.56
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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.