Finding the Fourth Proportional to 20,255,967.68, 30,526,136 and 18,236,229.44
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Solution
The fourth proportional to 20,255,967.68, 30,526,136 and 18,236,229.44 is: 27,482,351.32
Step by Step Solution
- Step 1: Write the proportion equation
20,255,967.68 : 30,526,136 = 18,236,229.44 : x - Step 2: Convert to fraction form
20,255,967.68/30,526,136 = 18,236,229.44/x - Step 3: Cross multiply
20,255,967.68x = 30,526,136 × 18,236,229.44 - Step 4: Simplify right side
20,255,967.68x = 556,681,620,012,643.88 - Step 5: Solve for x
x = 556,681,620,012,643.88/20,255,967.68 - Step 6: Final answer
x = 27,482,351.32
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.