Finding the Fourth Proportional to 213,485,833.47, 319,862,821.32 and 143,324,657.31
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Solution
The fourth proportional to 213,485,833.47, 319,862,821.32 and 143,324,657.31 is: 214,741,317.99
Step by Step Solution
- Step 1: Write the proportion equation
213,485,833.47 : 319,862,821.32 = 143,324,657.31 : x - Step 2: Convert to fraction form
213,485,833.47/319,862,821.32 = 143,324,657.31/x - Step 3: Cross multiply
213,485,833.47x = 319,862,821.32 × 143,324,657.31 - Step 4: Simplify right side
213,485,833.47x = 45,844,229,251,898,760 - Step 5: Solve for x
x = 45,844,229,251,898,760/213,485,833.47 - Step 6: Final answer
x = 214,741,317.99
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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.