Finding the Fourth Proportional to 130,297,069.60, 195,467,722.80 and 39,419,936.80
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Solution
The fourth proportional to 130,297,069.60, 195,467,722.80 and 39,419,936.80 is: 59,136,596.88
Step by Step Solution
- Step 1: Write the proportion equation
130,297,069.60 : 195,467,722.80 = 39,419,936.80 : x - Step 2: Convert to fraction form
130,297,069.60/195,467,722.80 = 39,419,936.80/x - Step 3: Cross multiply
130,297,069.60x = 195,467,722.80 × 39,419,936.80 - Step 4: Simplify right side
130,297,069.60x = 7,705,325,279,215,919 - Step 5: Solve for x
x = 7,705,325,279,215,919/130,297,069.60 - Step 6: Final answer
x = 59,136,596.88
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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.