Finding the Fourth Proportional to 7,087,554.36, 9,780,317.73 and 3,989,917.62
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Solution
The fourth proportional to 7,087,554.36, 9,780,317.73 and 3,989,917.62 is: 5,505,800.74
Step by Step Solution
- Step 1: Write the proportion equation
7,087,554.36 : 9,780,317.73 = 3,989,917.62 : x - Step 2: Convert to fraction form
7,087,554.36/9,780,317.73 = 3,989,917.62/x - Step 3: Cross multiply
7,087,554.36x = 9,780,317.73 × 3,989,917.62 - Step 4: Simplify right side
7,087,554.36x = 39,022,662,040,125.41 - Step 5: Solve for x
x = 39,022,662,040,125.41/7,087,554.36 - Step 6: Final answer
x = 5,505,800.74
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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.