Finding the Fourth Proportional to 12,830,879.08, 19,244,712.12 and 4,194,255.70
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Solution
The fourth proportional to 12,830,879.08, 19,244,712.12 and 4,194,255.70 is: 6,290,858.41
Step by Step Solution
- Step 1: Write the proportion equation
12,830,879.08 : 19,244,712.12 = 4,194,255.70 : x - Step 2: Convert to fraction form
12,830,879.08/19,244,712.12 = 4,194,255.70/x - Step 3: Cross multiply
12,830,879.08x = 19,244,712.12 × 4,194,255.70 - Step 4: Simplify right side
12,830,879.08x = 80,717,243,504,169.09 - Step 5: Solve for x
x = 80,717,243,504,169.09/12,830,879.08 - Step 6: Final answer
x = 6,290,858.41
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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.