Finding the Fourth Proportional to 19,683,761.20, 29,525,641.80 and 16,991,126.80
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Solution
The fourth proportional to 19,683,761.20, 29,525,641.80 and 16,991,126.80 is: 25,486,690.20
Step by Step Solution
- Step 1: Write the proportion equation
19,683,761.20 : 29,525,641.80 = 16,991,126.80 : x - Step 2: Convert to fraction form
19,683,761.20/29,525,641.80 = 16,991,126.80/x - Step 3: Cross multiply
19,683,761.20x = 29,525,641.80 × 16,991,126.80 - Step 4: Simplify right side
19,683,761.20x = 501,673,923,675,180.25 - Step 5: Solve for x
x = 501,673,923,675,180.25/19,683,761.20 - Step 6: Final answer
x = 25,486,690.20
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1.5x scale
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.