Finding the Fourth Proportional to 71,535,199.80, 107,192,574.90 and 53,253,629.40
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Solution
The fourth proportional to 71,535,199.80, 107,192,574.90 and 53,253,629.40 is: 79,798,388.40
Step by Step Solution
- Step 1: Write the proportion equation
71,535,199.80 : 107,192,574.90 = 53,253,629.40 : x - Step 2: Convert to fraction form
71,535,199.80/107,192,574.90 = 53,253,629.40/x - Step 3: Cross multiply
71,535,199.80x = 107,192,574.90 × 53,253,629.40 - Step 4: Simplify right side
71,535,199.80x = 5,708,393,658,156,342 - Step 5: Solve for x
x = 5,708,393,658,156,342/71,535,199.80 - Step 6: Final answer
x = 79,798,388.40
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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.