Finding the Fourth Proportional to 7,129,604.79, 10,691,722.28 and 2,579,528.73
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Solution
The fourth proportional to 7,129,604.79, 10,691,722.28 and 2,579,528.73 is: 3,868,321.68
Step by Step Solution
- Step 1: Write the proportion equation
7,129,604.79 : 10,691,722.28 = 2,579,528.73 : x - Step 2: Convert to fraction form
7,129,604.79/10,691,722.28 = 2,579,528.73/x - Step 3: Cross multiply
7,129,604.79x = 10,691,722.28 × 2,579,528.73 - Step 4: Simplify right side
7,129,604.79x = 27,579,604,794,441.10 - Step 5: Solve for x
x = 27,579,604,794,441.10/7,129,604.79 - Step 6: Final answer
x = 3,868,321.68
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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.