Finding the Fourth Proportional to 2,085,577.20, 3,128,365.80 and 2,050,147.80
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Solution
The fourth proportional to 2,085,577.20, 3,128,365.80 and 2,050,147.80 is: 3,075,221.70
Step by Step Solution
- Step 1: Write the proportion equation
2,085,577.20 : 3,128,365.80 = 2,050,147.80 : x - Step 2: Convert to fraction form
2,085,577.20/3,128,365.80 = 2,050,147.80/x - Step 3: Cross multiply
2,085,577.20x = 3,128,365.80 × 2,050,147.80 - Step 4: Simplify right side
2,085,577.20x = 6,413,612,262,465.24 - Step 5: Solve for x
x = 6,413,612,262,465.24/2,085,577.20 - Step 6: Final answer
x = 3,075,221.70
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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.