Finding the Fourth Proportional to 11,985,423.36, 17,976,166.68 and 5,160,158.76
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Solution
The fourth proportional to 11,985,423.36, 17,976,166.68 and 5,160,158.76 is: 7,739,390.69
Step by Step Solution
- Step 1: Write the proportion equation
11,985,423.36 : 17,976,166.68 = 5,160,158.76 : x - Step 2: Convert to fraction form
11,985,423.36/17,976,166.68 = 5,160,158.76/x - Step 3: Cross multiply
11,985,423.36x = 17,976,166.68 × 5,160,158.76 - Step 4: Simplify right side
11,985,423.36x = 92,759,873,965,022.11 - Step 5: Solve for x
x = 92,759,873,965,022.11/11,985,423.36 - Step 6: Final answer
x = 7,739,390.69
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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.