Finding the Fourth Proportional to 10,138,537.84, 13,991,121.42 and 5,492,410.60
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Solution
The fourth proportional to 10,138,537.84, 13,991,121.42 and 5,492,410.60 is: 7,579,493.69
Step by Step Solution
- Step 1: Write the proportion equation
10,138,537.84 : 13,991,121.42 = 5,492,410.60 : x - Step 2: Convert to fraction form
10,138,537.84/13,991,121.42 = 5,492,410.60/x - Step 3: Cross multiply
10,138,537.84x = 13,991,121.42 × 5,492,410.60 - Step 4: Simplify right side
10,138,537.84x = 76,844,983,593,095.05 - Step 5: Solve for x
x = 76,844,983,593,095.05/10,138,537.84 - Step 6: Final answer
x = 7,579,493.69
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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.