Finding the Fourth Proportional to 103,517,551.20, 155,144,450.70 and 55,018,639.20
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Solution
The fourth proportional to 103,517,551.20, 155,144,450.70 and 55,018,639.20 is: 82,457,867.85
Step by Step Solution
- Step 1: Write the proportion equation
103,517,551.20 : 155,144,450.70 = 55,018,639.20 : x - Step 2: Convert to fraction form
103,517,551.20/155,144,450.70 = 55,018,639.20/x - Step 3: Cross multiply
103,517,551.20x = 155,144,450.70 × 55,018,639.20 - Step 4: Simplify right side
103,517,551.20x = 8,535,836,556,945,487 - Step 5: Solve for x
x = 8,535,836,556,945,487/103,517,551.20 - Step 6: Final answer
x = 82,457,867.85
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.