Finding the Fourth Proportional to 40,517,351.28, 55,911,821.40 and 22,179,124.08
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Solution
The fourth proportional to 40,517,351.28, 55,911,821.40 and 22,179,124.08 is: 30,606,028.90
Step by Step Solution
- Step 1: Write the proportion equation
40,517,351.28 : 55,911,821.40 = 22,179,124.08 : x - Step 2: Convert to fraction form
40,517,351.28/55,911,821.40 = 22,179,124.08/x - Step 3: Cross multiply
40,517,351.28x = 55,911,821.40 × 22,179,124.08 - Step 4: Simplify right side
40,517,351.28x = 1,240,075,224,369,399.25 - Step 5: Solve for x
x = 1,240,075,224,369,399.25/40,517,351.28 - Step 6: Final answer
x = 30,606,028.90
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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.