Finding the Fourth Proportional to 5,199,423.60, 7,172,786.70 and 3,364,474.92
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Solution
The fourth proportional to 5,199,423.60, 7,172,786.70 and 3,364,474.92 is: 4,641,410.82
Step by Step Solution
- Step 1: Write the proportion equation
5,199,423.60 : 7,172,786.70 = 3,364,474.92 : x - Step 2: Convert to fraction form
5,199,423.60/7,172,786.70 = 3,364,474.92/x - Step 3: Cross multiply
5,199,423.60x = 7,172,786.70 × 3,364,474.92 - Step 4: Simplify right side
5,199,423.60x = 24,132,660,958,659.56 - Step 5: Solve for x
x = 24,132,660,958,659.56/5,199,423.60 - Step 6: Final answer
x = 4,641,410.82
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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.