Finding the Fourth Proportional to 206,089,615.80, 309,134,423.70 and 125,468,047.80
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Solution
The fourth proportional to 206,089,615.80, 309,134,423.70 and 125,468,047.80 is: 188,202,071.70
Step by Step Solution
- Step 1: Write the proportion equation
206,089,615.80 : 309,134,423.70 = 125,468,047.80 : x - Step 2: Convert to fraction form
206,089,615.80/309,134,423.70 = 125,468,047.80/x - Step 3: Cross multiply
206,089,615.80x = 309,134,423.70 × 125,468,047.80 - Step 4: Simplify right side
206,089,615.80x = 38,786,492,649,417,048 - Step 5: Solve for x
x = 38,786,492,649,417,048/206,089,615.80 - Step 6: Final answer
x = 188,202,071.70
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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.