Finding the Fourth Proportional to 21,649,161.98, 29,875,605.69 and 11,725,797.78
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Solution
The fourth proportional to 21,649,161.98, 29,875,605.69 and 11,725,797.78 is: 16,181,472.12
Step by Step Solution
- Step 1: Write the proportion equation
21,649,161.98 : 29,875,605.69 = 11,725,797.78 : x - Step 2: Convert to fraction form
21,649,161.98/29,875,605.69 = 11,725,797.78/x - Step 3: Cross multiply
21,649,161.98x = 29,875,605.69 × 11,725,797.78 - Step 4: Simplify right side
21,649,161.98x = 350,315,310,892,017.38 - Step 5: Solve for x
x = 350,315,310,892,017.38/21,649,161.98 - Step 6: Final answer
x = 16,181,472.12
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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.