Finding the Fourth Proportional to 129,487,124.70, 194,230,687.05 and 88,672,455.90
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Solution
The fourth proportional to 129,487,124.70, 194,230,687.05 and 88,672,455.90 is: 133,008,683.85
Step by Step Solution
- Step 1: Write the proportion equation
129,487,124.70 : 194,230,687.05 = 88,672,455.90 : x - Step 2: Convert to fraction form
129,487,124.70/194,230,687.05 = 88,672,455.90/x - Step 3: Cross multiply
129,487,124.70x = 194,230,687.05 × 88,672,455.90 - Step 4: Simplify right side
129,487,124.70x = 17,222,912,031,867,828 - Step 5: Solve for x
x = 17,222,912,031,867,828/129,487,124.70 - Step 6: Final answer
x = 133,008,683.85
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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.