Finding the Fourth Proportional to 329,027,138.16, 490,599,115.56 and 319,987,326.48
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Solution
The fourth proportional to 329,027,138.16, 490,599,115.56 and 319,987,326.48 is: 477,120,216.40
Step by Step Solution
- Step 1: Write the proportion equation
329,027,138.16 : 490,599,115.56 = 319,987,326.48 : x - Step 2: Convert to fraction form
329,027,138.16/490,599,115.56 = 319,987,326.48/x - Step 3: Cross multiply
329,027,138.16x = 490,599,115.56 × 319,987,326.48 - Step 4: Simplify right side
329,027,138.16x = 156,985,499,361,496,992 - Step 5: Solve for x
x = 156,985,499,361,496,992/329,027,138.16 - Step 6: Final answer
x = 477,120,216.40
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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.