Finding the Fourth Proportional to 80,841,189.40, 121,279,498.80 and 39,920,232.40
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Solution
The fourth proportional to 80,841,189.40, 121,279,498.80 and 39,920,232.40 is: 59,889,096.31
Step by Step Solution
- Step 1: Write the proportion equation
80,841,189.40 : 121,279,498.80 = 39,920,232.40 : x - Step 2: Convert to fraction form
80,841,189.40/121,279,498.80 = 39,920,232.40/x - Step 3: Cross multiply
80,841,189.40x = 121,279,498.80 × 39,920,232.40 - Step 4: Simplify right side
80,841,189.40x = 4,841,505,777,451,521 - Step 5: Solve for x
x = 4,841,505,777,451,521/80,841,189.40 - Step 6: Final answer
x = 59,889,096.31
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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.