Finding the Fourth Proportional to 75,479,401.80, 113,219,102.70 and 48,269,622.60
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Solution
The fourth proportional to 75,479,401.80, 113,219,102.70 and 48,269,622.60 is: 72,404,433.90
Step by Step Solution
- Step 1: Write the proportion equation
75,479,401.80 : 113,219,102.70 = 48,269,622.60 : x - Step 2: Convert to fraction form
75,479,401.80/113,219,102.70 = 48,269,622.60/x - Step 3: Cross multiply
75,479,401.80x = 113,219,102.70 × 48,269,622.60 - Step 4: Simplify right side
75,479,401.80x = 5,465,043,358,439,641 - Step 5: Solve for x
x = 5,465,043,358,439,641/75,479,401.80 - Step 6: Final answer
x = 72,404,433.90
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1.5x scale
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.