Finding the Fourth Proportional to 7,175,919.20, 10,763,879.04 and 2,916,419.88
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Solution
The fourth proportional to 7,175,919.20, 10,763,879.04 and 2,916,419.88 is: 4,374,629.92
Step by Step Solution
- Step 1: Write the proportion equation
7,175,919.20 : 10,763,879.04 = 2,916,419.88 : x - Step 2: Convert to fraction form
7,175,919.20/10,763,879.04 = 2,916,419.88/x - Step 3: Cross multiply
7,175,919.20x = 10,763,879.04 × 2,916,419.88 - Step 4: Simplify right side
7,175,919.20x = 31,391,990,818,171.31 - Step 5: Solve for x
x = 31,391,990,818,171.31/7,175,919.20 - Step 6: Final answer
x = 4,374,629.92
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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.