Finding the Fourth Proportional to 3,851,033.45, 5,314,782.78 and 2,132,153.99
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Solution
The fourth proportional to 3,851,033.45, 5,314,782.78 and 2,132,153.99 is: 2,942,569.95
Step by Step Solution
- Step 1: Write the proportion equation
3,851,033.45 : 5,314,782.78 = 2,132,153.99 : x - Step 2: Convert to fraction form
3,851,033.45/5,314,782.78 = 2,132,153.99/x - Step 3: Cross multiply
3,851,033.45x = 5,314,782.78 × 2,132,153.99 - Step 4: Simplify right side
3,851,033.45x = 11,331,935,310,360.29 - Step 5: Solve for x
x = 11,331,935,310,360.29/3,851,033.45 - Step 6: Final answer
x = 2,942,569.95
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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.