Finding the Fourth Proportional to 75,722,025.80, 113,583,038.70 and 48,512,246.60
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Solution
The fourth proportional to 75,722,025.80, 113,583,038.70 and 48,512,246.60 is: 72,768,369.90
Step by Step Solution
- Step 1: Write the proportion equation
75,722,025.80 : 113,583,038.70 = 48,512,246.60 : x - Step 2: Convert to fraction form
75,722,025.80/113,583,038.70 = 48,512,246.60/x - Step 3: Cross multiply
75,722,025.80x = 113,583,038.70 × 48,512,246.60 - Step 4: Simplify right side
75,722,025.80x = 5,510,168,382,991,744 - Step 5: Solve for x
x = 5,510,168,382,991,744/75,722,025.80 - Step 6: Final answer
x = 72,768,369.90
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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.