Finding the Fourth Proportional to 18,715,071.60, 25,812,577.80 and 16,105,914.99
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Solution
The fourth proportional to 18,715,071.60, 25,812,577.80 and 16,105,914.99 is: 22,213,924.30
Step by Step Solution
- Step 1: Write the proportion equation
18,715,071.60 : 25,812,577.80 = 16,105,914.99 : x - Step 2: Convert to fraction form
18,715,071.60/25,812,577.80 = 16,105,914.99/x - Step 3: Cross multiply
18,715,071.60x = 25,812,577.80 × 16,105,914.99 - Step 4: Simplify right side
18,715,071.60x = 415,735,183,719,561.25 - Step 5: Solve for x
x = 415,735,183,719,561.25/18,715,071.60 - Step 6: Final answer
x = 22,213,924.30
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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.