Finding the Fourth Proportional to 20,277,075.68, 27,982,242.84 and 10,984,821.20
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Solution
The fourth proportional to 20,277,075.68, 27,982,242.84 and 10,984,821.20 is: 15,158,987.38
Step by Step Solution
- Step 1: Write the proportion equation
20,277,075.68 : 27,982,242.84 = 10,984,821.20 : x - Step 2: Convert to fraction form
20,277,075.68/27,982,242.84 = 10,984,821.20/x - Step 3: Cross multiply
20,277,075.68x = 27,982,242.84 × 10,984,821.20 - Step 4: Simplify right side
20,277,075.68x = 307,379,934,372,380.19 - Step 5: Solve for x
x = 307,379,934,372,380.19/20,277,075.68 - Step 6: Final answer
x = 15,158,987.38
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1.5x scale
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.