Finding the Fourth Proportional to 16,470,721.80, 24,706,082.70 and 12,219,193.80
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Solution
The fourth proportional to 16,470,721.80, 24,706,082.70 and 12,219,193.80 is: 18,328,790.70
Step by Step Solution
- Step 1: Write the proportion equation
16,470,721.80 : 24,706,082.70 = 12,219,193.80 : x - Step 2: Convert to fraction form
16,470,721.80/24,706,082.70 = 12,219,193.80/x - Step 3: Cross multiply
16,470,721.80x = 24,706,082.70 × 12,219,193.80 - Step 4: Simplify right side
16,470,721.80x = 301,888,412,550,127.25 - Step 5: Solve for x
x = 301,888,412,550,127.25/16,470,721.80 - Step 6: Final answer
x = 18,328,790.70
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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.