Finding the Fourth Proportional to 5,430,188.24, 7,493,222.76 and 3,138,497.36
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Solution
The fourth proportional to 5,430,188.24, 7,493,222.76 and 3,138,497.36 is: 4,330,873.78
Step by Step Solution
- Step 1: Write the proportion equation
5,430,188.24 : 7,493,222.76 = 3,138,497.36 : x - Step 2: Convert to fraction form
5,430,188.24/7,493,222.76 = 3,138,497.36/x - Step 3: Cross multiply
5,430,188.24x = 7,493,222.76 × 3,138,497.36 - Step 4: Simplify right side
5,430,188.24x = 23,517,459,850,151.91 - Step 5: Solve for x
x = 23,517,459,850,151.91/5,430,188.24 - Step 6: Final answer
x = 4,330,873.78
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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.