Finding the Fourth Proportional to 21,716,480.40, 32,586,530.40 and 8,938,276.80
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Solution
The fourth proportional to 21,716,480.40, 32,586,530.40 and 8,938,276.80 is: 13,412,275.99
Step by Step Solution
- Step 1: Write the proportion equation
21,716,480.40 : 32,586,530.40 = 8,938,276.80 : x - Step 2: Convert to fraction form
21,716,480.40/32,586,530.40 = 8,938,276.80/x - Step 3: Cross multiply
21,716,480.40x = 32,586,530.40 × 8,938,276.80 - Step 4: Simplify right side
21,716,480.40x = 291,267,428,666,814.75 - Step 5: Solve for x
x = 291,267,428,666,814.75/21,716,480.40 - Step 6: Final answer
x = 13,412,275.99
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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.