Finding the Fourth Proportional to 87,430,219.80, 131,145,329.70 and 84,910,795.80
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Solution
The fourth proportional to 87,430,219.80, 131,145,329.70 and 84,910,795.80 is: 127,366,193.70
Step by Step Solution
- Step 1: Write the proportion equation
87,430,219.80 : 131,145,329.70 = 84,910,795.80 : x - Step 2: Convert to fraction form
87,430,219.80/131,145,329.70 = 84,910,795.80/x - Step 3: Cross multiply
87,430,219.80x = 131,145,329.70 × 84,910,795.80 - Step 4: Simplify right side
87,430,219.80x = 11,135,654,310,280,376 - Step 5: Solve for x
x = 11,135,654,310,280,376/87,430,219.80 - Step 6: Final answer
x = 127,366,193.70
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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.