Finding the Fourth Proportional to 8,207,378.90, 12,311,703.84 and 2,742,492.60
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Solution
The fourth proportional to 8,207,378.90, 12,311,703.84 and 2,742,492.60 is: 4,113,951.25
Step by Step Solution
- Step 1: Write the proportion equation
8,207,378.90 : 12,311,703.84 = 2,742,492.60 : x - Step 2: Convert to fraction form
8,207,378.90/12,311,703.84 = 2,742,492.60/x - Step 3: Cross multiply
8,207,378.90x = 12,311,703.84 × 2,742,492.60 - Step 4: Simplify right side
8,207,378.90x = 33,764,756,674,591.59 - Step 5: Solve for x
x = 33,764,756,674,591.59/8,207,378.90 - Step 6: Final answer
x = 4,113,951.25
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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.