Finding the Fourth Proportional to 3,916,318.87, 5,873,147.92 and 1,356,936.49
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Solution
The fourth proportional to 3,916,318.87, 5,873,147.92 and 1,356,936.49 is: 2,034,943.78
Step by Step Solution
- Step 1: Write the proportion equation
3,916,318.87 : 5,873,147.92 = 1,356,936.49 : x - Step 2: Convert to fraction form
3,916,318.87/5,873,147.92 = 1,356,936.49/x - Step 3: Cross multiply
3,916,318.87x = 5,873,147.92 × 1,356,936.49 - Step 4: Simplify right side
3,916,318.87x = 7,969,488,723,815.60 - Step 5: Solve for x
x = 7,969,488,723,815.60/3,916,318.87 - Step 6: Final answer
x = 2,034,943.78
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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.