Finding the Fourth Proportional to 10,347,919.80, 15,521,879.70 and 3,256,207.80
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Solution
The fourth proportional to 10,347,919.80, 15,521,879.70 and 3,256,207.80 is: 4,884,311.70
Step by Step Solution
- Step 1: Write the proportion equation
10,347,919.80 : 15,521,879.70 = 3,256,207.80 : x - Step 2: Convert to fraction form
10,347,919.80/15,521,879.70 = 3,256,207.80/x - Step 3: Cross multiply
10,347,919.80x = 15,521,879.70 × 3,256,207.80 - Step 4: Simplify right side
10,347,919.80x = 50,542,465,749,801.66 - Step 5: Solve for x
x = 50,542,465,749,801.66/10,347,919.80 - Step 6: Final answer
x = 4,884,311.70
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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.