Finding the Fourth Proportional to 48,912,758.40, 73,369,137.60 and 48,156,931.20
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Solution
The fourth proportional to 48,912,758.40, 73,369,137.60 and 48,156,931.20 is: 72,235,396.80
Step by Step Solution
- Step 1: Write the proportion equation
48,912,758.40 : 73,369,137.60 = 48,156,931.20 : x - Step 2: Convert to fraction form
48,912,758.40/73,369,137.60 = 48,156,931.20/x - Step 3: Cross multiply
48,912,758.40x = 73,369,137.60 × 48,156,931.20 - Step 4: Simplify right side
48,912,758.40x = 3,533,232,511,606,533 - Step 5: Solve for x
x = 3,533,232,511,606,533/48,912,758.40 - Step 6: Final answer
x = 72,235,396.80
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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.