Finding the Fourth Proportional to 20,563,690.62, 30,883,955.46 and 18,102,579.04
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Solution
The fourth proportional to 20,563,690.62, 30,883,955.46 and 18,102,579.04 is: 27,187,689.95
Step by Step Solution
- Step 1: Write the proportion equation
20,563,690.62 : 30,883,955.46 = 18,102,579.04 : x - Step 2: Convert to fraction form
20,563,690.62/30,883,955.46 = 18,102,579.04/x - Step 3: Cross multiply
20,563,690.62x = 30,883,955.46 × 18,102,579.04 - Step 4: Simplify right side
20,563,690.62x = 559,079,244,782,489.56 - Step 5: Solve for x
x = 559,079,244,782,489.56/20,563,690.62 - Step 6: Final answer
x = 27,187,689.95
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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.