Finding the Fourth Proportional to 53,107,321.80, 79,660,982.70 and 53,107,321.80
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Solution
The fourth proportional to 53,107,321.80, 79,660,982.70 and 53,107,321.80 is: 79,660,982.70
Step by Step Solution
- Step 1: Write the proportion equation
53,107,321.80 : 79,660,982.70 = 53,107,321.80 : x - Step 2: Convert to fraction form
53,107,321.80/79,660,982.70 = 53,107,321.80/x - Step 3: Cross multiply
53,107,321.80x = 79,660,982.70 × 53,107,321.80 - Step 4: Simplify right side
53,107,321.80x = 4,230,581,443,153,133 - Step 5: Solve for x
x = 4,230,581,443,153,133/53,107,321.80 - Step 6: Final answer
x = 79,660,982.70
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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.