Finding the Fourth Proportional to 21,621,144.88, 29,837,182.68 and 11,831,591.08
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Solution
The fourth proportional to 21,621,144.88, 29,837,182.68 and 11,831,591.08 is: 16,327,597.19
Step by Step Solution
- Step 1: Write the proportion equation
21,621,144.88 : 29,837,182.68 = 11,831,591.08 : x - Step 2: Convert to fraction form
21,621,144.88/29,837,182.68 = 11,831,591.08/x - Step 3: Cross multiply
21,621,144.88x = 29,837,182.68 × 11,831,591.08 - Step 4: Simplify right side
21,621,144.88x = 353,021,344,449,018.50 - Step 5: Solve for x
x = 353,021,344,449,018.50/21,621,144.88 - Step 6: Final answer
x = 16,327,597.19
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Double scale
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Similar ratio
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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.