Finding the Fourth Proportional to 66,311,271.20, 91,512,378.36 and 36,942,587.12
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Solution
The fourth proportional to 66,311,271.20, 91,512,378.36 and 36,942,587.12 is: 50,982,343.56
Step by Step Solution
- Step 1: Write the proportion equation
66,311,271.20 : 91,512,378.36 = 36,942,587.12 : x - Step 2: Convert to fraction form
66,311,271.20/91,512,378.36 = 36,942,587.12/x - Step 3: Cross multiply
66,311,271.20x = 91,512,378.36 × 36,942,587.12 - Step 4: Simplify right side
66,311,271.20x = 3,380,704,010,122,702.50 - Step 5: Solve for x
x = 3,380,704,010,122,702.50/66,311,271.20 - Step 6: Final answer
x = 50,982,343.56
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.