Finding the Fourth Proportional to 10,408,805.20, 15,620,206.20 and 5,859,845.20
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Solution
The fourth proportional to 10,408,805.20, 15,620,206.20 and 5,859,845.20 is: 8,793,707.69
Step by Step Solution
- Step 1: Write the proportion equation
10,408,805.20 : 15,620,206.20 = 5,859,845.20 : x - Step 2: Convert to fraction form
10,408,805.20/15,620,206.20 = 5,859,845.20/x - Step 3: Cross multiply
10,408,805.20x = 15,620,206.20 × 5,859,845.20 - Step 4: Simplify right side
10,408,805.20x = 91,531,990,324,080.23 - Step 5: Solve for x
x = 91,531,990,324,080.23/10,408,805.20 - Step 6: Final answer
x = 8,793,707.69
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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.