Finding the Fourth Proportional to 329,026,933.92, 490,598,812.74 and 319,987,122.48
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Solution
The fourth proportional to 329,026,933.92, 490,598,812.74 and 319,987,122.48 is: 477,119,913.89
Step by Step Solution
- Step 1: Write the proportion equation
329,026,933.92 : 490,598,812.74 = 319,987,122.48 : x - Step 2: Convert to fraction form
329,026,933.92/490,598,812.74 = 319,987,122.48/x - Step 3: Cross multiply
329,026,933.92x = 490,598,812.74 × 319,987,122.48 - Step 4: Simplify right side
329,026,933.92x = 156,985,302,380,776,992 - Step 5: Solve for x
x = 156,985,302,380,776,992/329,026,933.92 - Step 6: Final answer
x = 477,119,913.89
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.