Finding the Fourth Proportional to 11,900,739.97, 16,423,367.58 and 6,743,930.05
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Solution
The fourth proportional to 11,900,739.97, 16,423,367.58 and 6,743,930.05 is: 9,306,819.78
Step by Step Solution
- Step 1: Write the proportion equation
11,900,739.97 : 16,423,367.58 = 6,743,930.05 : x - Step 2: Convert to fraction form
11,900,739.97/16,423,367.58 = 6,743,930.05/x - Step 3: Cross multiply
11,900,739.97x = 16,423,367.58 × 6,743,930.05 - Step 4: Simplify right side
11,900,739.97x = 110,758,042,144,957.78 - Step 5: Solve for x
x = 110,758,042,144,957.78/11,900,739.97 - Step 6: Final answer
x = 9,306,819.78
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1.5x scale
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.