Finding the Fourth Proportional to 31,310,108.80, 46,965,163.20 and 19,830,983.20
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Solution
The fourth proportional to 31,310,108.80, 46,965,163.20 and 19,830,983.20 is: 29,746,474.80
Step by Step Solution
- Step 1: Write the proportion equation
31,310,108.80 : 46,965,163.20 = 19,830,983.20 : x - Step 2: Convert to fraction form
31,310,108.80/46,965,163.20 = 19,830,983.20/x - Step 3: Cross multiply
31,310,108.80x = 46,965,163.20 × 19,830,983.20 - Step 4: Simplify right side
31,310,108.80x = 931,365,362,404,458.25 - Step 5: Solve for x
x = 931,365,362,404,458.25/31,310,108.80 - Step 6: Final answer
x = 29,746,474.80
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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.