Finding the Fourth Proportional to 10,388,750.45, 15,583,125.80 and 2,815,716.20
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Solution
The fourth proportional to 10,388,750.45, 15,583,125.80 and 2,815,716.20 is: 4,223,574.33
Step by Step Solution
- Step 1: Write the proportion equation
10,388,750.45 : 15,583,125.80 = 2,815,716.20 : x - Step 2: Convert to fraction form
10,388,750.45/15,583,125.80 = 2,815,716.20/x - Step 3: Cross multiply
10,388,750.45x = 15,583,125.80 × 2,815,716.20 - Step 4: Simplify right side
10,388,750.45x = 43,877,659,690,821.62 - Step 5: Solve for x
x = 43,877,659,690,821.62/10,388,750.45 - Step 6: Final answer
x = 4,223,574.33
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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.