Finding the Fourth Proportional to 21,550,460.84, 29,739,220.96 and 11,760,975.09
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Solution
The fourth proportional to 21,550,460.84, 29,739,220.96 and 11,760,975.09 is: 16,229,919.14
Step by Step Solution
- Step 1: Write the proportion equation
21,550,460.84 : 29,739,220.96 = 11,760,975.09 : x - Step 2: Convert to fraction form
21,550,460.84/29,739,220.96 = 11,760,975.09/x - Step 3: Cross multiply
21,550,460.84x = 29,739,220.96 × 11,760,975.09 - Step 4: Simplify right side
21,550,460.84x = 349,762,236,794,622.88 - Step 5: Solve for x
x = 349,762,236,794,622.88/21,550,460.84 - Step 6: Final answer
x = 16,229,919.14
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1.5x scale
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.