Finding the Fourth Proportional to 5,430,193.74, 7,493,230.34 and 3,138,502.86
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Solution
The fourth proportional to 5,430,193.74, 7,493,230.34 and 3,138,502.86 is: 4,330,881.36
Step by Step Solution
- Step 1: Write the proportion equation
5,430,193.74 : 7,493,230.34 = 3,138,502.86 : x - Step 2: Convert to fraction form
5,430,193.74/7,493,230.34 = 3,138,502.86/x - Step 3: Cross multiply
5,430,193.74x = 7,493,230.34 × 3,138,502.86 - Step 4: Simplify right side
5,430,193.74x = 23,517,524,852,728.77 - Step 5: Solve for x
x = 23,517,524,852,728.77/5,430,193.74 - Step 6: Final answer
x = 4,330,881.36
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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.