Finding the Fourth Proportional to 19,815,985, 29,728,971.42 and 5,632,561
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Solution
The fourth proportional to 19,815,985, 29,728,971.42 and 5,632,561 is: 8,450,260.99
Step by Step Solution
- Step 1: Write the proportion equation
19,815,985 : 29,728,971.42 = 5,632,561 : x - Step 2: Convert to fraction form
19,815,985/29,728,971.42 = 5,632,561/x - Step 3: Cross multiply
19,815,985x = 29,728,971.42 × 5,632,561 - Step 4: Simplify right side
19,815,985x = 167,450,244,990,406.62 - Step 5: Solve for x
x = 167,450,244,990,406.62/19,815,985 - Step 6: Final answer
x = 8,450,260.99
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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.