Finding the Fourth Proportional to 20,745,114.12, 31,122,558.90 and 7,098,409.08
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Solution
The fourth proportional to 20,745,114.12, 31,122,558.90 and 7,098,409.08 is: 10,649,286.06
Step by Step Solution
- Step 1: Write the proportion equation
20,745,114.12 : 31,122,558.90 = 7,098,409.08 : x - Step 2: Convert to fraction form
20,745,114.12/31,122,558.90 = 7,098,409.08/x - Step 3: Cross multiply
20,745,114.12x = 31,122,558.90 × 7,098,409.08 - Step 4: Simplify right side
20,745,114.12x = 220,920,654,688,594.81 - Step 5: Solve for x
x = 220,920,654,688,594.81/20,745,114.12 - Step 6: Final answer
x = 10,649,286.06
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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.