Finding the Fourth Proportional to 18,579,653.99, 27,878,611.31 and 8,351,740.25
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Solution
The fourth proportional to 18,579,653.99, 27,878,611.31 and 8,351,740.25 is: 12,531,714.55
Step by Step Solution
- Step 1: Write the proportion equation
18,579,653.99 : 27,878,611.31 = 8,351,740.25 : x - Step 2: Convert to fraction form
18,579,653.99/27,878,611.31 = 8,351,740.25/x - Step 3: Cross multiply
18,579,653.99x = 27,878,611.31 × 8,351,740.25 - Step 4: Simplify right side
18,579,653.99x = 232,834,920,191,832.22 - Step 5: Solve for x
x = 232,834,920,191,832.22/18,579,653.99 - Step 6: Final answer
x = 12,531,714.55
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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.