Finding the Fourth Proportional to 7,432,983.80, 11,149,475.70 and 5,543,415.80
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Solution
The fourth proportional to 7,432,983.80, 11,149,475.70 and 5,543,415.80 is: 8,315,123.70
Step by Step Solution
- Step 1: Write the proportion equation
7,432,983.80 : 11,149,475.70 = 5,543,415.80 : x - Step 2: Convert to fraction form
7,432,983.80/11,149,475.70 = 5,543,415.80/x - Step 3: Cross multiply
7,432,983.80x = 11,149,475.70 × 5,543,415.80 - Step 4: Simplify right side
7,432,983.80x = 61,806,179,757,096.05 - Step 5: Solve for x
x = 61,806,179,757,096.05/7,432,983.80 - Step 6: Final answer
x = 8,315,123.70
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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.