Finding the Fourth Proportional to 7,381,808.40, 11,072,712.60 and 5,588,195.03
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Solution
The fourth proportional to 7,381,808.40, 11,072,712.60 and 5,588,195.03 is: 8,382,292.55
Step by Step Solution
- Step 1: Write the proportion equation
7,381,808.40 : 11,072,712.60 = 5,588,195.03 : x - Step 2: Convert to fraction form
7,381,808.40/11,072,712.60 = 5,588,195.03/x - Step 3: Cross multiply
7,381,808.40x = 11,072,712.60 × 5,588,195.03 - Step 4: Simplify right side
7,381,808.40x = 61,876,477,519,938.38 - Step 5: Solve for x
x = 61,876,477,519,938.38/7,381,808.40 - Step 6: Final answer
x = 8,382,292.55
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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.