Finding the Fourth Proportional to 5,331,767.40, 7,990,652.70 and 2,134,276.20
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Solution
The fourth proportional to 5,331,767.40, 7,990,652.70 and 2,134,276.20 is: 3,198,612.88
Step by Step Solution
- Step 1: Write the proportion equation
5,331,767.40 : 7,990,652.70 = 2,134,276.20 : x - Step 2: Convert to fraction form
5,331,767.40/7,990,652.70 = 2,134,276.20/x - Step 3: Cross multiply
5,331,767.40x = 7,990,652.70 × 2,134,276.20 - Step 4: Simplify right side
5,331,767.40x = 17,054,259,880,075.74 - Step 5: Solve for x
x = 17,054,259,880,075.74/5,331,767.40 - Step 6: Final answer
x = 3,198,612.88
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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.