Finding the Fourth Proportional to 6,645,983.89, 9,171,465.99 and 3,590,198.14
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Solution
The fourth proportional to 6,645,983.89, 9,171,465.99 and 3,590,198.14 is: 4,954,477.87
Step by Step Solution
- Step 1: Write the proportion equation
6,645,983.89 : 9,171,465.99 = 3,590,198.14 : x - Step 2: Convert to fraction form
6,645,983.89/9,171,465.99 = 3,590,198.14/x - Step 3: Cross multiply
6,645,983.89x = 9,171,465.99 × 3,590,198.14 - Step 4: Simplify right side
6,645,983.89x = 32,927,380,138,371.26 - Step 5: Solve for x
x = 32,927,380,138,371.26/6,645,983.89 - Step 6: Final answer
x = 4,954,477.87
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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.