Finding the Fourth Proportional to 53,581,517.40, 80,372,276.10 and 53,203,603.80
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Solution
The fourth proportional to 53,581,517.40, 80,372,276.10 and 53,203,603.80 is: 79,805,405.70
Step by Step Solution
- Step 1: Write the proportion equation
53,581,517.40 : 80,372,276.10 = 53,203,603.80 : x - Step 2: Convert to fraction form
53,581,517.40/80,372,276.10 = 53,203,603.80/x - Step 3: Cross multiply
53,581,517.40x = 80,372,276.10 × 53,203,603.80 - Step 4: Simplify right side
53,581,517.40x = 4,276,094,734,128,608.50 - Step 5: Solve for x
x = 4,276,094,734,128,608.50/53,581,517.40 - Step 6: Final answer
x = 79,805,405.70
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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.