Finding the Fourth Proportional to 11,171,729.80, 16,757,594.70 and 6,920,201.80
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Solution
The fourth proportional to 11,171,729.80, 16,757,594.70 and 6,920,201.80 is: 10,380,302.70
Step by Step Solution
- Step 1: Write the proportion equation
11,171,729.80 : 16,757,594.70 = 6,920,201.80 : x - Step 2: Convert to fraction form
11,171,729.80/16,757,594.70 = 6,920,201.80/x - Step 3: Cross multiply
11,171,729.80x = 16,757,594.70 × 6,920,201.80 - Step 4: Simplify right side
11,171,729.80x = 115,965,937,006,610.45 - Step 5: Solve for x
x = 115,965,937,006,610.45/11,171,729.80 - Step 6: Final answer
x = 10,380,302.70
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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.