Finding the Fourth Proportional to 30,432,957.11, 45,541,677.51 and 18,923,844.09
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Solution
The fourth proportional to 30,432,957.11, 45,541,677.51 and 18,923,844.09 is: 28,318,759.88
Step by Step Solution
- Step 1: Write the proportion equation
30,432,957.11 : 45,541,677.51 = 18,923,844.09 : x - Step 2: Convert to fraction form
30,432,957.11/45,541,677.51 = 18,923,844.09/x - Step 3: Cross multiply
30,432,957.11x = 45,541,677.51 × 18,923,844.09 - Step 4: Simplify right side
30,432,957.11x = 861,823,604,796,299.38 - Step 5: Solve for x
x = 861,823,604,796,299.38/30,432,957.11 - Step 6: Final answer
x = 28,318,759.88
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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.