Finding the Fourth Proportional to 5,282,817.85, 7,290,315.53 and 2,991,425.05
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Solution
The fourth proportional to 5,282,817.85, 7,290,315.53 and 2,991,425.05 is: 4,128,181.80
Step by Step Solution
- Step 1: Write the proportion equation
5,282,817.85 : 7,290,315.53 = 2,991,425.05 : x - Step 2: Convert to fraction form
5,282,817.85/7,290,315.53 = 2,991,425.05/x - Step 3: Cross multiply
5,282,817.85x = 7,290,315.53 × 2,991,425.05 - Step 4: Simplify right side
5,282,817.85x = 21,808,432,498,846.03 - Step 5: Solve for x
x = 21,808,432,498,846.03/5,282,817.85 - Step 6: Final answer
x = 4,128,181.80
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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.