Finding the Fourth Proportional to 12,122,523.42, 18,163,802.94 and 10,872,453.66
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Solution
The fourth proportional to 12,122,523.42, 18,163,802.94 and 10,872,453.66 is: 16,290,758.86
Step by Step Solution
- Step 1: Write the proportion equation
12,122,523.42 : 18,163,802.94 = 10,872,453.66 : x - Step 2: Convert to fraction form
12,122,523.42/18,163,802.94 = 10,872,453.66/x - Step 3: Cross multiply
12,122,523.42x = 18,163,802.94 × 10,872,453.66 - Step 4: Simplify right side
12,122,523.42x = 197,485,105,754,521.78 - Step 5: Solve for x
x = 197,485,105,754,521.78/12,122,523.42 - Step 6: Final answer
x = 16,290,758.86
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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.