Finding the Fourth Proportional to 129,952,406.70, 194,928,610.05 and 53,330,424.30
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Solution
The fourth proportional to 129,952,406.70, 194,928,610.05 and 53,330,424.30 is: 79,995,636.45
Step by Step Solution
- Step 1: Write the proportion equation
129,952,406.70 : 194,928,610.05 = 53,330,424.30 : x - Step 2: Convert to fraction form
129,952,406.70/194,928,610.05 = 53,330,424.30/x - Step 3: Cross multiply
129,952,406.70x = 194,928,610.05 × 53,330,424.30 - Step 4: Simplify right side
129,952,406.70x = 10,395,625,482,175,744 - Step 5: Solve for x
x = 10,395,625,482,175,744/129,952,406.70 - Step 6: Final answer
x = 79,995,636.45
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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.