Finding the Fourth Proportional to 84,321,203.70, 126,481,805.55 and 38,971,571.70
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Solution
The fourth proportional to 84,321,203.70, 126,481,805.55 and 38,971,571.70 is: 58,457,357.55
Step by Step Solution
- Step 1: Write the proportion equation
84,321,203.70 : 126,481,805.55 = 38,971,571.70 : x - Step 2: Convert to fraction form
84,321,203.70/126,481,805.55 = 38,971,571.70/x - Step 3: Cross multiply
84,321,203.70x = 126,481,805.55 × 38,971,571.70 - Step 4: Simplify right side
84,321,203.70x = 4,929,194,753,737,283 - Step 5: Solve for x
x = 4,929,194,753,737,283/84,321,203.70 - Step 6: Final answer
x = 58,457,357.55
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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.