Finding the Fourth Proportional to 48,912,638.40, 73,368,957.60 and 48,156,811.20
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Solution
The fourth proportional to 48,912,638.40, 73,368,957.60 and 48,156,811.20 is: 72,235,216.80
Step by Step Solution
- Step 1: Write the proportion equation
48,912,638.40 : 73,368,957.60 = 48,156,811.20 : x - Step 2: Convert to fraction form
48,912,638.40/73,368,957.60 = 48,156,811.20/x - Step 3: Cross multiply
48,912,638.40x = 73,368,957.60 × 48,156,811.20 - Step 4: Simplify right side
48,912,638.40x = 3,533,215,039,084,005 - Step 5: Solve for x
x = 3,533,215,039,084,005/48,912,638.40 - Step 6: Final answer
x = 72,235,216.80
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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.