Finding the Fourth Proportional to 96,234,938.80, 144,352,408.20 and 31,523,139.70
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Solution
The fourth proportional to 96,234,938.80, 144,352,408.20 and 31,523,139.70 is: 47,284,709.55
Step by Step Solution
- Step 1: Write the proportion equation
96,234,938.80 : 144,352,408.20 = 31,523,139.70 : x - Step 2: Convert to fraction form
96,234,938.80/144,352,408.20 = 31,523,139.70/x - Step 3: Cross multiply
96,234,938.80x = 144,352,408.20 × 31,523,139.70 - Step 4: Simplify right side
96,234,938.80x = 4,550,441,129,720,025 - Step 5: Solve for x
x = 4,550,441,129,720,025/96,234,938.80 - Step 6: Final answer
x = 47,284,709.55
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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.