Finding the Fourth Proportional to 7,075,173.22, 9,763,512.90 and 3,977,827.64
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Solution
The fourth proportional to 7,075,173.22, 9,763,512.90 and 3,977,827.64 is: 5,489,274.99
Step by Step Solution
- Step 1: Write the proportion equation
7,075,173.22 : 9,763,512.90 = 3,977,827.64 : x - Step 2: Convert to fraction form
7,075,173.22/9,763,512.90 = 3,977,827.64/x - Step 3: Cross multiply
7,075,173.22x = 9,763,512.90 × 3,977,827.64 - Step 4: Simplify right side
7,075,173.22x = 38,837,571,456,859.06 - Step 5: Solve for x
x = 38,837,571,456,859.06/7,075,173.22 - Step 6: Final answer
x = 5,489,274.99
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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.