Finding the Fourth Proportional to 198,101,140.40, 297,151,710.60 and 61,786,305.20
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Solution
The fourth proportional to 198,101,140.40, 297,151,710.60 and 61,786,305.20 is: 92,679,457.80
Step by Step Solution
- Step 1: Write the proportion equation
198,101,140.40 : 297,151,710.60 = 61,786,305.20 : x - Step 2: Convert to fraction form
198,101,140.40/297,151,710.60 = 61,786,305.20/x - Step 3: Cross multiply
198,101,140.40x = 297,151,710.60 × 61,786,305.20 - Step 4: Simplify right side
198,101,140.40x = 18,359,906,281,833,676 - Step 5: Solve for x
x = 18,359,906,281,833,676/198,101,140.40 - Step 6: Final answer
x = 92,679,457.80
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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.