Finding the Fourth Proportional to 207,508,707.12, 311,317,575.17 and 74,574,984.70
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Solution
The fourth proportional to 207,508,707.12, 311,317,575.17 and 74,574,984.70 is: 111,882,068.60
Step by Step Solution
- Step 1: Write the proportion equation
207,508,707.12 : 311,317,575.17 = 74,574,984.70 : x - Step 2: Convert to fraction form
207,508,707.12/311,317,575.17 = 74,574,984.70/x - Step 3: Cross multiply
207,508,707.12x = 311,317,575.17 × 74,574,984.70 - Step 4: Simplify right side
207,508,707.12x = 23,216,503,405,143,852 - Step 5: Solve for x
x = 23,216,503,405,143,852/207,508,707.12 - Step 6: Final answer
x = 111,882,068.60
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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.