Finding the Fourth Proportional to 75,546,288.80, 113,319,433.20 and 48,336,509.60
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Solution
The fourth proportional to 75,546,288.80, 113,319,433.20 and 48,336,509.60 is: 72,504,764.40
Step by Step Solution
- Step 1: Write the proportion equation
75,546,288.80 : 113,319,433.20 = 48,336,509.60 : x - Step 2: Convert to fraction form
75,546,288.80/113,319,433.20 = 48,336,509.60/x - Step 3: Cross multiply
75,546,288.80x = 113,319,433.20 × 48,336,509.60 - Step 4: Simplify right side
75,546,288.80x = 5,477,465,870,738,359 - Step 5: Solve for x
x = 5,477,465,870,738,359/75,546,288.80 - Step 6: Final answer
x = 72,504,764.40
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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.