Finding the Fourth Proportional to 12,343,709.20, 18,515,563.80 and 4,365,533.20
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Solution
The fourth proportional to 12,343,709.20, 18,515,563.80 and 4,365,533.20 is: 6,548,299.80
Step by Step Solution
- Step 1: Write the proportion equation
12,343,709.20 : 18,515,563.80 = 4,365,533.20 : x - Step 2: Convert to fraction form
12,343,709.20/18,515,563.80 = 4,365,533.20/x - Step 3: Cross multiply
12,343,709.20x = 18,515,563.80 × 4,365,533.20 - Step 4: Simplify right side
12,343,709.20x = 80,830,308,485,618.17 - Step 5: Solve for x
x = 80,830,308,485,618.17/12,343,709.20 - Step 6: Final answer
x = 6,548,299.80
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1.5x scale
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.