Finding the Fourth Proportional to 5,424,771.80, 8,134,201.20 and 1,637,762.60
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Solution
The fourth proportional to 5,424,771.80, 8,134,201.20 and 1,637,762.60 is: 2,455,751.32
Step by Step Solution
- Step 1: Write the proportion equation
5,424,771.80 : 8,134,201.20 = 1,637,762.60 : x - Step 2: Convert to fraction form
5,424,771.80/8,134,201.20 = 1,637,762.60/x - Step 3: Cross multiply
5,424,771.80x = 8,134,201.20 × 1,637,762.60 - Step 4: Simplify right side
5,424,771.80x = 13,321,890,506,235.12 - Step 5: Solve for x
x = 13,321,890,506,235.12/5,424,771.80 - Step 6: Final answer
x = 2,455,751.32
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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.