Finding the Fourth Proportional to 87,709,351.80, 131,564,027.70 and 71,766,121.80
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Solution
The fourth proportional to 87,709,351.80, 131,564,027.70 and 71,766,121.80 is: 107,649,182.70
Step by Step Solution
- Step 1: Write the proportion equation
87,709,351.80 : 131,564,027.70 = 71,766,121.80 : x - Step 2: Convert to fraction form
87,709,351.80/131,564,027.70 = 71,766,121.80/x - Step 3: Cross multiply
87,709,351.80x = 131,564,027.70 × 71,766,121.80 - Step 4: Simplify right side
87,709,351.80x = 9,441,840,036,416,774 - Step 5: Solve for x
x = 9,441,840,036,416,774/87,709,351.80 - Step 6: Final answer
x = 107,649,182.70
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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.