Finding the Fourth Proportional to 10,368,087.80, 15,552,131.70 and 7,512,740.60
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Solution
The fourth proportional to 10,368,087.80, 15,552,131.70 and 7,512,740.60 is: 11,269,110.90
Step by Step Solution
- Step 1: Write the proportion equation
10,368,087.80 : 15,552,131.70 = 7,512,740.60 : x - Step 2: Convert to fraction form
10,368,087.80/15,552,131.70 = 7,512,740.60/x - Step 3: Cross multiply
10,368,087.80x = 15,552,131.70 × 7,512,740.60 - Step 4: Simplify right side
10,368,087.80x = 116,839,131,239,137.02 - Step 5: Solve for x
x = 116,839,131,239,137.02/10,368,087.80 - Step 6: Final answer
x = 11,269,110.90
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1.5x scale
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.