Finding the Fourth Proportional to 3,888,175.20, 5,831,485.20 and 1,866,415.20
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Solution
The fourth proportional to 3,888,175.20, 5,831,485.20 and 1,866,415.20 is: 2,799,249.53
Step by Step Solution
- Step 1: Write the proportion equation
3,888,175.20 : 5,831,485.20 = 1,866,415.20 : x - Step 2: Convert to fraction form
3,888,175.20/5,831,485.20 = 1,866,415.20/x - Step 3: Cross multiply
3,888,175.20x = 5,831,485.20 × 1,866,415.20 - Step 4: Simplify right side
3,888,175.20x = 10,883,972,615,855.04 - Step 5: Solve for x
x = 10,883,972,615,855.04/3,888,175.20 - Step 6: Final answer
x = 2,799,249.53
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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.