Finding the Fourth Proportional to 13,310,122.88, 18,367,969.58 and 7,198,551.38
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Solution
The fourth proportional to 13,310,122.88, 18,367,969.58 and 7,198,551.38 is: 9,934,000.90
Step by Step Solution
- Step 1: Write the proportion equation
13,310,122.88 : 18,367,969.58 = 7,198,551.38 : x - Step 2: Convert to fraction form
13,310,122.88/18,367,969.58 = 7,198,551.38/x - Step 3: Cross multiply
13,310,122.88x = 18,367,969.58 × 7,198,551.38 - Step 4: Simplify right side
13,310,122.88x = 132,222,772,640,074.41 - Step 5: Solve for x
x = 132,222,772,640,074.41/13,310,122.88 - Step 6: Final answer
x = 9,934,000.90
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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.