Finding the Fourth Proportional to 5,175,601.05, 7,142,236.74 and 2,820,819.99
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Solution
The fourth proportional to 5,175,601.05, 7,142,236.74 and 2,820,819.99 is: 3,892,681.06
Step by Step Solution
- Step 1: Write the proportion equation
5,175,601.05 : 7,142,236.74 = 2,820,819.99 : x - Step 2: Convert to fraction form
5,175,601.05/7,142,236.74 = 2,820,819.99/x - Step 3: Cross multiply
5,175,601.05x = 7,142,236.74 × 2,820,819.99 - Step 4: Simplify right side
5,175,601.05x = 20,146,964,169,504.43 - Step 5: Solve for x
x = 20,146,964,169,504.43/5,175,601.05 - Step 6: Final answer
x = 3,892,681.06
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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.