Finding the Fourth Proportional to 53,190,166.20, 79,785,263.84 and 12,800,650.20
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Solution
The fourth proportional to 53,190,166.20, 79,785,263.84 and 12,800,650.20 is: 19,200,978.80
Step by Step Solution
- Step 1: Write the proportion equation
53,190,166.20 : 79,785,263.84 = 12,800,650.20 : x - Step 2: Convert to fraction form
53,190,166.20/79,785,263.84 = 12,800,650.20/x - Step 3: Cross multiply
53,190,166.20x = 79,785,263.84 × 12,800,650.20 - Step 4: Simplify right side
53,190,166.20x = 1,021,303,253,530,548.75 - Step 5: Solve for x
x = 1,021,303,253,530,548.75/53,190,166.20 - Step 6: Final answer
x = 19,200,978.80
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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.