Finding the Fourth Proportional to 320,112,403.87, 441,619,846.72 and 214,299,907.96
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Solution
The fourth proportional to 320,112,403.87, 441,619,846.72 and 214,299,907.96 is: 295,643,315.79
Step by Step Solution
- Step 1: Write the proportion equation
320,112,403.87 : 441,619,846.72 = 214,299,907.96 : x - Step 2: Convert to fraction form
320,112,403.87/441,619,846.72 = 214,299,907.96/x - Step 3: Cross multiply
320,112,403.87x = 441,619,846.72 × 214,299,907.96 - Step 4: Simplify right side
320,112,403.87x = 94,639,092,505,405,312 - Step 5: Solve for x
x = 94,639,092,505,405,312/320,112,403.87 - Step 6: Final answer
x = 295,643,315.79
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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.