Finding the Fourth Proportional to 5,621,407.20, 7,757,247.96 and 3,297,976.74
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Solution
The fourth proportional to 5,621,407.20, 7,757,247.96 and 3,297,976.74 is: 4,551,035.43
Step by Step Solution
- Step 1: Write the proportion equation
5,621,407.20 : 7,757,247.96 = 3,297,976.74 : x - Step 2: Convert to fraction form
5,621,407.20/7,757,247.96 = 3,297,976.74/x - Step 3: Cross multiply
5,621,407.20x = 7,757,247.96 × 3,297,976.74 - Step 4: Simplify right side
5,621,407.20x = 25,583,223,338,492.45 - Step 5: Solve for x
x = 25,583,223,338,492.45/5,621,407.20 - Step 6: Final answer
x = 4,551,035.43
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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.