Finding the Fourth Proportional to 272,173,232.70, 408,259,849.05 and 163,334,115.90
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Solution
The fourth proportional to 272,173,232.70, 408,259,849.05 and 163,334,115.90 is: 245,001,173.85
Step by Step Solution
- Step 1: Write the proportion equation
272,173,232.70 : 408,259,849.05 = 163,334,115.90 : x - Step 2: Convert to fraction form
272,173,232.70/408,259,849.05 = 163,334,115.90/x - Step 3: Cross multiply
272,173,232.70x = 408,259,849.05 × 163,334,115.90 - Step 4: Simplify right side
272,173,232.70x = 66,682,761,502,049,208 - Step 5: Solve for x
x = 66,682,761,502,049,208/272,173,232.70 - Step 6: Final answer
x = 245,001,173.85
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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.