Finding the Fourth Proportional to 136,701,057.87, 188,647,936.11 and 73,977,140.18
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Solution
The fourth proportional to 136,701,057.87, 188,647,936.11 and 73,977,140.18 is: 102,088,711.17
Step by Step Solution
- Step 1: Write the proportion equation
136,701,057.87 : 188,647,936.11 = 73,977,140.18 : x - Step 2: Convert to fraction form
136,701,057.87/188,647,936.11 = 73,977,140.18/x - Step 3: Cross multiply
136,701,057.87x = 188,647,936.11 × 73,977,140.18 - Step 4: Simplify right side
136,701,057.87x = 13,955,634,813,333,914 - Step 5: Solve for x
x = 13,955,634,813,333,914/136,701,057.87 - Step 6: Final answer
x = 102,088,711.17
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.