Finding the Fourth Proportional to 492,276,496.73, 679,550,740.67 and 306,729,185.99
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Solution
The fourth proportional to 492,276,496.73, 679,550,740.67 and 306,729,185.99 is: 423,416,610.20
Step by Step Solution
- Step 1: Write the proportion equation
492,276,496.73 : 679,550,740.67 = 306,729,185.99 : x - Step 2: Convert to fraction form
492,276,496.73/679,550,740.67 = 306,729,185.99/x - Step 3: Cross multiply
492,276,496.73x = 679,550,740.67 × 306,729,185.99 - Step 4: Simplify right side
492,276,496.73x = 208,438,045,524,610,688 - Step 5: Solve for x
x = 208,438,045,524,610,688/492,276,496.73 - Step 6: Final answer
x = 423,416,610.20
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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.