Finding the Fourth Proportional to 5,220,509.20, 7,204,351.80 and 2,928,719.08
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Solution
The fourth proportional to 5,220,509.20, 7,204,351.80 and 2,928,719.08 is: 4,041,659.88
Step by Step Solution
- Step 1: Write the proportion equation
5,220,509.20 : 7,204,351.80 = 2,928,719.08 : x - Step 2: Convert to fraction form
5,220,509.20/7,204,351.80 = 2,928,719.08/x - Step 3: Cross multiply
5,220,509.20x = 7,204,351.80 × 2,928,719.08 - Step 4: Simplify right side
5,220,509.20x = 21,099,522,575,692.34 - Step 5: Solve for x
x = 21,099,522,575,692.34/5,220,509.20 - Step 6: Final answer
x = 4,041,659.88
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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.