Finding the Fourth Proportional to 18,579,654.99, 27,878,612.81 and 8,351,741.25
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Solution
The fourth proportional to 18,579,654.99, 27,878,612.81 and 8,351,741.25 is: 12,531,716.05
Step by Step Solution
- Step 1: Write the proportion equation
18,579,654.99 : 27,878,612.81 = 8,351,741.25 : x - Step 2: Convert to fraction form
18,579,654.99/27,878,612.81 = 8,351,741.25/x - Step 3: Cross multiply
18,579,654.99x = 27,878,612.81 × 8,351,741.25 - Step 4: Simplify right side
18,579,654.99x = 232,834,960,598,055.41 - Step 5: Solve for x
x = 232,834,960,598,055.41/18,579,654.99 - Step 6: Final answer
x = 12,531,716.05
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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.