Finding the Fourth Proportional to 25,779,040.20, 38,635,382.70 and 19,765,600.20
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Solution
The fourth proportional to 25,779,040.20, 38,635,382.70 and 19,765,600.20 is: 29,622,961.99
Step by Step Solution
- Step 1: Write the proportion equation
25,779,040.20 : 38,635,382.70 = 19,765,600.20 : x - Step 2: Convert to fraction form
25,779,040.20/38,635,382.70 = 19,765,600.20/x - Step 3: Cross multiply
25,779,040.20x = 38,635,382.70 × 19,765,600.20 - Step 4: Simplify right side
25,779,040.20x = 763,651,528,022,196.62 - Step 5: Solve for x
x = 763,651,528,022,196.62/25,779,040.20 - Step 6: Final answer
x = 29,622,961.99
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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.