Finding the Fourth Proportional to 492,276,493.98, 679,550,736.87 and 306,729,183.24
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Solution
The fourth proportional to 492,276,493.98, 679,550,736.87 and 306,729,183.24 is: 423,416,606.40
Step by Step Solution
- Step 1: Write the proportion equation
492,276,493.98 : 679,550,736.87 = 306,729,183.24 : x - Step 2: Convert to fraction form
492,276,493.98/679,550,736.87 = 306,729,183.24/x - Step 3: Cross multiply
492,276,493.98x = 679,550,736.87 × 306,729,183.24 - Step 4: Simplify right side
492,276,493.98x = 208,438,042,490,275,264 - Step 5: Solve for x
x = 208,438,042,490,275,264/492,276,493.98 - Step 6: Final answer
x = 423,416,606.40
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.