Finding the Fourth Proportional to 18,589,506.30, 27,884,259.45 and 13,487,672.70
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Solution
The fourth proportional to 18,589,506.30, 27,884,259.45 and 13,487,672.70 is: 20,231,509.05
Step by Step Solution
- Step 1: Write the proportion equation
18,589,506.30 : 27,884,259.45 = 13,487,672.70 : x - Step 2: Convert to fraction form
18,589,506.30/27,884,259.45 = 13,487,672.70/x - Step 3: Cross multiply
18,589,506.30x = 27,884,259.45 × 13,487,672.70 - Step 4: Simplify right side
18,589,506.30x = 376,093,764,943,482 - Step 5: Solve for x
x = 376,093,764,943,482/18,589,506.30 - Step 6: Final answer
x = 20,231,509.05
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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.