Finding the Fourth Proportional to 2,219,271.80, 3,321,909.30 and 2,149,287.80
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Solution
The fourth proportional to 2,219,271.80, 3,321,909.30 and 2,149,287.80 is: 3,217,153.99
Step by Step Solution
- Step 1: Write the proportion equation
2,219,271.80 : 3,321,909.30 = 2,149,287.80 : x - Step 2: Convert to fraction form
2,219,271.80/3,321,909.30 = 2,149,287.80/x - Step 3: Cross multiply
2,219,271.80x = 3,321,909.30 × 2,149,287.80 - Step 4: Simplify right side
2,219,271.80x = 7,139,739,131,196.54 - Step 5: Solve for x
x = 7,139,739,131,196.54/2,219,271.80 - Step 6: Final answer
x = 3,217,153.99
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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.