Finding the Fourth Proportional to 10,811,968.20, 14,920,521.94 and 5,917,187.44
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Solution
The fourth proportional to 10,811,968.20, 14,920,521.94 and 5,917,187.44 is: 8,165,721.85
Step by Step Solution
- Step 1: Write the proportion equation
10,811,968.20 : 14,920,521.94 = 5,917,187.44 : x - Step 2: Convert to fraction form
10,811,968.20/14,920,521.94 = 5,917,187.44/x - Step 3: Cross multiply
10,811,968.20x = 14,920,521.94 × 5,917,187.44 - Step 4: Simplify right side
10,811,968.20x = 88,287,525,021,612.44 - Step 5: Solve for x
x = 88,287,525,021,612.44/10,811,968.20 - Step 6: Final answer
x = 8,165,721.85
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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.