Finding the Fourth Proportional to 19,683,456.20, 29,525,184.30 and 16,990,821.80
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Solution
The fourth proportional to 19,683,456.20, 29,525,184.30 and 16,990,821.80 is: 25,486,232.70
Step by Step Solution
- Step 1: Write the proportion equation
19,683,456.20 : 29,525,184.30 = 16,990,821.80 : x - Step 2: Convert to fraction form
19,683,456.20/29,525,184.30 = 16,990,821.80/x - Step 3: Cross multiply
19,683,456.20x = 29,525,184.30 × 16,990,821.80 - Step 4: Simplify right side
19,683,456.20x = 501,657,145,053,457.75 - Step 5: Solve for x
x = 501,657,145,053,457.75/19,683,456.20 - Step 6: Final answer
x = 25,486,232.70
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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.