Finding the Fourth Proportional to 5,139,171.20, 7,705,768.75 and 1,944,543.75
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Solution
The fourth proportional to 5,139,171.20, 7,705,768.75 and 1,944,543.75 is: 2,915,685.02
Step by Step Solution
- Step 1: Write the proportion equation
5,139,171.20 : 7,705,768.75 = 1,944,543.75 : x - Step 2: Convert to fraction form
5,139,171.20/7,705,768.75 = 1,944,543.75/x - Step 3: Cross multiply
5,139,171.20x = 7,705,768.75 × 1,944,543.75 - Step 4: Simplify right side
5,139,171.20x = 14,984,204,456,896.45 - Step 5: Solve for x
x = 14,984,204,456,896.45/5,139,171.20 - Step 6: Final answer
x = 2,915,685.02
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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.