Finding the Fourth Proportional to 1,992,344,083.80, 2,980,453,968.90 and 1,750,479,379.80
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Solution
The fourth proportional to 1,992,344,083.80, 2,980,453,968.90 and 1,750,479,379.80 is: 2,618,635,634.99
Step by Step Solution
- Step 1: Write the proportion equation
1,992,344,083.80 : 2,980,453,968.90 = 1,750,479,379.80 : x - Step 2: Convert to fraction form
1,992,344,083.80/2,980,453,968.90 = 1,750,479,379.80/x - Step 3: Cross multiply
1,992,344,083.80x = 2,980,453,968.90 × 1,750,479,379.80 - Step 4: Simplify right side
1,992,344,083.80x = 5,217,223,215,002,520,576 - Step 5: Solve for x
x = 5,217,223,215,002,520,576/1,992,344,083.80 - Step 6: Final answer
x = 2,618,635,634.99
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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.