Finding the Fourth Proportional to 6,253,640.90, 8,618,229.86 and 5,011,840.70
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Solution
The fourth proportional to 6,253,640.90, 8,618,229.86 and 5,011,840.70 is: 6,906,887.66
Step by Step Solution
- Step 1: Write the proportion equation
6,253,640.90 : 8,618,229.86 = 5,011,840.70 : x - Step 2: Convert to fraction form
6,253,640.90/8,618,229.86 = 5,011,840.70/x - Step 3: Cross multiply
6,253,640.90x = 8,618,229.86 × 5,011,840.70 - Step 4: Simplify right side
6,253,640.90x = 43,193,195,174,303.30 - Step 5: Solve for x
x = 43,193,195,174,303.30/6,253,640.90 - Step 6: Final answer
x = 6,906,887.66
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.