Finding the Fourth Proportional to 521,746,404.21, 782,747,728.92 and 259,554,665.97
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Solution
The fourth proportional to 521,746,404.21, 782,747,728.92 and 259,554,665.97 is: 389,395,736.47
Step by Step Solution
- Step 1: Write the proportion equation
521,746,404.21 : 782,747,728.92 = 259,554,665.97 : x - Step 2: Convert to fraction form
521,746,404.21/782,747,728.92 = 259,554,665.97/x - Step 3: Cross multiply
521,746,404.21x = 782,747,728.92 × 259,554,665.97 - Step 4: Simplify right side
521,746,404.21x = 203,165,825,318,606,688 - Step 5: Solve for x
x = 203,165,825,318,606,688/521,746,404.21 - Step 6: Final answer
x = 389,395,736.47
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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.