Finding the Fourth Proportional to 21,809,235.99, 30,095,518.17 and 12,019,649.30
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Solution
The fourth proportional to 21,809,235.99, 30,095,518.17 and 12,019,649.30 is: 16,586,439.53
Step by Step Solution
- Step 1: Write the proportion equation
21,809,235.99 : 30,095,518.17 = 12,019,649.30 : x - Step 2: Convert to fraction form
21,809,235.99/30,095,518.17 = 12,019,649.30/x - Step 3: Cross multiply
21,809,235.99x = 30,095,518.17 × 12,019,649.30 - Step 4: Simplify right side
21,809,235.99x = 361,737,573,912,632.06 - Step 5: Solve for x
x = 361,737,573,912,632.06/21,809,235.99 - Step 6: Final answer
x = 16,586,439.53
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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.