Finding the Fourth Proportional to 7,079,425.40, 10,619,107.81 and 1,961,840.70
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Solution
The fourth proportional to 7,079,425.40, 10,619,107.81 and 1,961,840.70 is: 2,942,752.65
Step by Step Solution
- Step 1: Write the proportion equation
7,079,425.40 : 10,619,107.81 = 1,961,840.70 : x - Step 2: Convert to fraction form
7,079,425.40/10,619,107.81 = 1,961,840.70/x - Step 3: Cross multiply
7,079,425.40x = 10,619,107.81 × 1,961,840.70 - Step 4: Simplify right side
7,079,425.40x = 20,832,997,894,441.26 - Step 5: Solve for x
x = 20,832,997,894,441.26/7,079,425.40 - Step 6: Final answer
x = 2,942,752.65
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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.