Finding the Fourth Proportional to 11,971,521.10, 16,523,390.16 and 7,839,152.14
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Solution
The fourth proportional to 11,971,521.10, 16,523,390.16 and 7,839,152.14 is: 10,819,792.09
Step by Step Solution
- Step 1: Write the proportion equation
11,971,521.10 : 16,523,390.16 = 7,839,152.14 : x - Step 2: Convert to fraction form
11,971,521.10/16,523,390.16 = 7,839,152.14/x - Step 3: Cross multiply
11,971,521.10x = 16,523,390.16 × 7,839,152.14 - Step 4: Simplify right side
11,971,521.10x = 129,529,369,332,818.94 - Step 5: Solve for x
x = 129,529,369,332,818.94/11,971,521.10 - Step 6: Final answer
x = 10,819,792.09
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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.