Finding the Fourth Proportional to 5,281,776.85, 7,928,570.18 and 4,088,987.05
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Solution
The fourth proportional to 5,281,776.85, 7,928,570.18 and 4,088,987.05 is: 6,138,051.96
Step by Step Solution
- Step 1: Write the proportion equation
5,281,776.85 : 7,928,570.18 = 4,088,987.05 : x - Step 2: Convert to fraction form
5,281,776.85/7,928,570.18 = 4,088,987.05/x - Step 3: Cross multiply
5,281,776.85x = 7,928,570.18 × 4,088,987.05 - Step 4: Simplify right side
5,281,776.85x = 32,419,820,770,591.23 - Step 5: Solve for x
x = 32,419,820,770,591.23/5,281,776.85 - Step 6: Final answer
x = 6,138,051.96
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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.