Finding the Fourth Proportional to 220,177,771.42, 303,846,525.76 and 129,655,211.56
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Solution
The fourth proportional to 220,177,771.42, 303,846,525.76 and 129,655,211.56 is: 178,924,899.29
Step by Step Solution
- Step 1: Write the proportion equation
220,177,771.42 : 303,846,525.76 = 129,655,211.56 : x - Step 2: Convert to fraction form
220,177,771.42/303,846,525.76 = 129,655,211.56/x - Step 3: Cross multiply
220,177,771.42x = 303,846,525.76 × 129,655,211.56 - Step 4: Simplify right side
220,177,771.42x = 39,395,285,578,245,480 - Step 5: Solve for x
x = 39,395,285,578,245,480/220,177,771.42 - Step 6: Final answer
x = 178,924,899.29
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.