Finding the Fourth Proportional to 13,826,521.61, 20,740,778.88 and 5,306,858.09
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Solution
The fourth proportional to 13,826,521.61, 20,740,778.88 and 5,306,858.09 is: 7,960,669.59
Step by Step Solution
- Step 1: Write the proportion equation
13,826,521.61 : 20,740,778.88 = 5,306,858.09 : x - Step 2: Convert to fraction form
13,826,521.61/20,740,778.88 = 5,306,858.09/x - Step 3: Cross multiply
13,826,521.61x = 20,740,778.88 × 5,306,858.09 - Step 4: Simplify right side
13,826,521.61x = 110,068,370,088,525.23 - Step 5: Solve for x
x = 110,068,370,088,525.23/13,826,521.61 - Step 6: Final answer
x = 7,960,669.59
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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.