Finding the Fourth Proportional to 10,128,734.19, 15,195,518.25 and 3,305,320.04
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Solution
The fourth proportional to 10,128,734.19, 15,195,518.25 and 3,305,320.04 is: 4,958,768.79
Step by Step Solution
- Step 1: Write the proportion equation
10,128,734.19 : 15,195,518.25 = 3,305,320.04 : x - Step 2: Convert to fraction form
10,128,734.19/15,195,518.25 = 3,305,320.04/x - Step 3: Cross multiply
10,128,734.19x = 15,195,518.25 × 3,305,320.04 - Step 4: Simplify right side
10,128,734.19x = 50,226,050,989,910.73 - Step 5: Solve for x
x = 50,226,050,989,910.73/10,128,734.19 - Step 6: Final answer
x = 4,958,768.79
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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.