Finding the Fourth Proportional to 19,643,786.80, 29,415,913.80 and 15,662,474.80
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Solution
The fourth proportional to 19,643,786.80, 29,415,913.80 and 15,662,474.80 is: 23,454,032.22
Step by Step Solution
- Step 1: Write the proportion equation
19,643,786.80 : 29,415,913.80 = 15,662,474.80 : x - Step 2: Convert to fraction form
19,643,786.80/29,415,913.80 = 15,662,474.80/x - Step 3: Cross multiply
19,643,786.80x = 29,415,913.80 × 15,662,474.80 - Step 4: Simplify right side
19,643,786.80x = 460,726,008,611,472.25 - Step 5: Solve for x
x = 460,726,008,611,472.25/19,643,786.80 - Step 6: Final answer
x = 23,454,032.22
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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.