Finding the Fourth Proportional to 28,979,548.08, 39,990,930.84 and 16,589,230.80
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Solution
The fourth proportional to 28,979,548.08, 39,990,930.84 and 16,589,230.80 is: 22,892,654.49
Step by Step Solution
- Step 1: Write the proportion equation
28,979,548.08 : 39,990,930.84 = 16,589,230.80 : x - Step 2: Convert to fraction form
28,979,548.08/39,990,930.84 = 16,589,230.80/x - Step 3: Cross multiply
28,979,548.08x = 39,990,930.84 × 16,589,230.80 - Step 4: Simplify right side
28,979,548.08x = 663,418,781,611,598 - Step 5: Solve for x
x = 663,418,781,611,598/28,979,548.08 - Step 6: Final answer
x = 22,892,654.49
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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.