Finding the Fourth Proportional to 4,031,214.12, 5,563,074.60 and 2,220,378.12
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Solution
The fourth proportional to 4,031,214.12, 5,563,074.60 and 2,220,378.12 is: 3,064,121.32
Step by Step Solution
- Step 1: Write the proportion equation
4,031,214.12 : 5,563,074.60 = 2,220,378.12 : x - Step 2: Convert to fraction form
4,031,214.12/5,563,074.60 = 2,220,378.12/x - Step 3: Cross multiply
4,031,214.12x = 5,563,074.60 × 2,220,378.12 - Step 4: Simplify right side
4,031,214.12x = 12,352,129,121,767.75 - Step 5: Solve for x
x = 12,352,129,121,767.75/4,031,214.12 - Step 6: Final answer
x = 3,064,121.32
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1.5x scale
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.