Finding the Fourth Proportional to 189,598,910.40, 284,398,365.60 and 132,156,043.20
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Solution
The fourth proportional to 189,598,910.40, 284,398,365.60 and 132,156,043.20 is: 198,234,064.80
Step by Step Solution
- Step 1: Write the proportion equation
189,598,910.40 : 284,398,365.60 = 132,156,043.20 : x - Step 2: Convert to fraction form
189,598,910.40/284,398,365.60 = 132,156,043.20/x - Step 3: Cross multiply
189,598,910.40x = 284,398,365.60 × 132,156,043.20 - Step 4: Simplify right side
189,598,910.40x = 37,584,962,690,243,000 - Step 5: Solve for x
x = 37,584,962,690,243,000/189,598,910.40 - Step 6: Final answer
x = 198,234,064.80
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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.