Finding the Fourth Proportional to 11,086,378.20, 16,632,677.70 and 5,406,787.80
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Solution
The fourth proportional to 11,086,378.20, 16,632,677.70 and 5,406,787.80 is: 8,111,698.63
Step by Step Solution
- Step 1: Write the proportion equation
11,086,378.20 : 16,632,677.70 = 5,406,787.80 : x - Step 2: Convert to fraction form
11,086,378.20/16,632,677.70 = 5,406,787.80/x - Step 3: Cross multiply
11,086,378.20x = 16,632,677.70 × 5,406,787.80 - Step 4: Simplify right side
11,086,378.20x = 89,929,358,869,692.05 - Step 5: Solve for x
x = 89,929,358,869,692.05/11,086,378.20 - Step 6: Final answer
x = 8,111,698.63
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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.