Finding the Fourth Proportional to 5,034,659.70, 7,551,989.55 and 3,121,472.10
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Solution
The fourth proportional to 5,034,659.70, 7,551,989.55 and 3,121,472.10 is: 4,682,208.15
Step by Step Solution
- Step 1: Write the proportion equation
5,034,659.70 : 7,551,989.55 = 3,121,472.10 : x - Step 2: Convert to fraction form
5,034,659.70/7,551,989.55 = 3,121,472.10/x - Step 3: Cross multiply
5,034,659.70x = 7,551,989.55 × 3,121,472.10 - Step 4: Simplify right side
5,034,659.70x = 23,573,324,679,816.55 - Step 5: Solve for x
x = 23,573,324,679,816.55/5,034,659.70 - Step 6: Final answer
x = 4,682,208.15
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Double scale
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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.