Finding the Fourth Proportional to 3,850,053.18, 5,313,008.91 and 2,131,136.70
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Solution
The fourth proportional to 3,850,053.18, 5,313,008.91 and 2,131,136.70 is: 2,940,932.95
Step by Step Solution
- Step 1: Write the proportion equation
3,850,053.18 : 5,313,008.91 = 2,131,136.70 : x - Step 2: Convert to fraction form
3,850,053.18/5,313,008.91 = 2,131,136.70/x - Step 3: Cross multiply
3,850,053.18x = 5,313,008.91 × 2,131,136.70 - Step 4: Simplify right side
3,850,053.18x = 11,322,748,275,528.00 - Step 5: Solve for x
x = 11,322,748,275,528.00/3,850,053.18 - Step 6: Final answer
x = 2,940,932.95
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.