Finding the Fourth Proportional to 407,998,574.35, 612,117,933.98 and 131,644,604.24
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Solution
The fourth proportional to 407,998,574.35, 612,117,933.98 and 131,644,604.24 is: 197,505,648.88
Step by Step Solution
- Step 1: Write the proportion equation
407,998,574.35 : 612,117,933.98 = 131,644,604.24 : x - Step 2: Convert to fraction form
407,998,574.35/612,117,933.98 = 131,644,604.24/x - Step 3: Cross multiply
407,998,574.35x = 612,117,933.98 × 131,644,604.24 - Step 4: Simplify right side
407,998,574.35x = 80,582,023,169,768,880 - Step 5: Solve for x
x = 80,582,023,169,768,880/407,998,574.35 - Step 6: Final answer
x = 197,505,648.88
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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.