Finding the Fourth Proportional to 66,889,739.70, 100,334,609.55 and 53,452,811.70
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Solution
The fourth proportional to 66,889,739.70, 100,334,609.55 and 53,452,811.70 is: 80,179,217.55
Step by Step Solution
- Step 1: Write the proportion equation
66,889,739.70 : 100,334,609.55 = 53,452,811.70 : x - Step 2: Convert to fraction form
66,889,739.70/100,334,609.55 = 53,452,811.70/x - Step 3: Cross multiply
66,889,739.70x = 100,334,609.55 × 53,452,811.70 - Step 4: Simplify right side
66,889,739.70x = 5,363,166,991,269,172 - Step 5: Solve for x
x = 5,363,166,991,269,172/66,889,739.70 - Step 6: Final answer
x = 80,179,217.55
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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.