Finding the Fourth Proportional to 192,470,486.80, 288,705,730.20 and 149,472,317.20
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Solution
The fourth proportional to 192,470,486.80, 288,705,730.20 and 149,472,317.20 is: 224,208,475.80
Step by Step Solution
- Step 1: Write the proportion equation
192,470,486.80 : 288,705,730.20 = 149,472,317.20 : x - Step 2: Convert to fraction form
192,470,486.80/288,705,730.20 = 149,472,317.20/x - Step 3: Cross multiply
192,470,486.80x = 288,705,730.20 × 149,472,317.20 - Step 4: Simplify right side
192,470,486.80x = 43,153,514,481,912,016 - Step 5: Solve for x
x = 43,153,514,481,912,016/192,470,486.80 - Step 6: Final answer
x = 224,208,475.80
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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.