Finding the Fourth Proportional to 18,875,687.20, 28,175,731.11 and 16,197,224.56
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Solution
The fourth proportional to 18,875,687.20, 28,175,731.11 and 16,197,224.56 is: 24,177,590.95
Step by Step Solution
- Step 1: Write the proportion equation
18,875,687.20 : 28,175,731.11 = 16,197,224.56 : x - Step 2: Convert to fraction form
18,875,687.20/28,175,731.11 = 16,197,224.56/x - Step 3: Cross multiply
18,875,687.20x = 28,175,731.11 × 16,197,224.56 - Step 4: Simplify right side
18,875,687.20x = 456,368,643,930,848.06 - Step 5: Solve for x
x = 456,368,643,930,848.06/18,875,687.20 - Step 6: Final answer
x = 24,177,590.95
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.