Finding the Fourth Proportional to 18,641,113.20, 27,925,846.74 and 11,431,623.96
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Solution
The fourth proportional to 18,641,113.20, 27,925,846.74 and 11,431,623.96 is: 17,125,467.52
Step by Step Solution
- Step 1: Write the proportion equation
18,641,113.20 : 27,925,846.74 = 11,431,623.96 : x - Step 2: Convert to fraction form
18,641,113.20/27,925,846.74 = 11,431,623.96/x - Step 3: Cross multiply
18,641,113.20x = 27,925,846.74 × 11,431,623.96 - Step 4: Simplify right side
18,641,113.20x = 319,237,778,696,271.88 - Step 5: Solve for x
x = 319,237,778,696,271.88/18,641,113.20 - Step 6: Final answer
x = 17,125,467.52
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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.