Finding the Fourth Proportional to 272,565,514.70, 408,848,272.05 and 163,726,397.90
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Solution
The fourth proportional to 272,565,514.70, 408,848,272.05 and 163,726,397.90 is: 245,589,596.85
Step by Step Solution
- Step 1: Write the proportion equation
272,565,514.70 : 408,848,272.05 = 163,726,397.90 : x - Step 2: Convert to fraction form
272,565,514.70/408,848,272.05 = 163,726,397.90/x - Step 3: Cross multiply
272,565,514.70x = 408,848,272.05 × 163,726,397.90 - Step 4: Simplify right side
272,565,514.70x = 66,939,254,870,385,752 - Step 5: Solve for x
x = 66,939,254,870,385,752/272,565,514.70 - Step 6: Final answer
x = 245,589,596.85
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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.