Finding the Fourth Proportional to 39,874,075.70, 55,026,273.68 and 21,539,361.20
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Solution
The fourth proportional to 39,874,075.70, 55,026,273.68 and 21,539,361.20 is: 29,724,345.03
Step by Step Solution
- Step 1: Write the proportion equation
39,874,075.70 : 55,026,273.68 = 21,539,361.20 : x - Step 2: Convert to fraction form
39,874,075.70/55,026,273.68 = 21,539,361.20/x - Step 3: Cross multiply
39,874,075.70x = 55,026,273.68 × 21,539,361.20 - Step 4: Simplify right side
39,874,075.70x = 1,185,230,783,900,745 - Step 5: Solve for x
x = 1,185,230,783,900,745/39,874,075.70 - Step 6: Final answer
x = 29,724,345.03
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.