Finding the Fourth Proportional to 129,952,397.20, 194,928,595.80 and 53,330,414.80
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Solution
The fourth proportional to 129,952,397.20, 194,928,595.80 and 53,330,414.80 is: 79,995,622.20
Step by Step Solution
- Step 1: Write the proportion equation
129,952,397.20 : 194,928,595.80 = 53,330,414.80 : x - Step 2: Convert to fraction form
129,952,397.20/194,928,595.80 = 53,330,414.80/x - Step 3: Cross multiply
129,952,397.20x = 194,928,595.80 × 53,330,414.80 - Step 4: Simplify right side
129,952,397.20x = 10,395,622,870,395,538 - Step 5: Solve for x
x = 10,395,622,870,395,538/129,952,397.20 - Step 6: Final answer
x = 79,995,622.20
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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.