Finding the Fourth Proportional to 8,239,268.80, 12,358,903.20 and 2,561,233.60
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Solution
The fourth proportional to 8,239,268.80, 12,358,903.20 and 2,561,233.60 is: 3,841,850.40
Step by Step Solution
- Step 1: Write the proportion equation
8,239,268.80 : 12,358,903.20 = 2,561,233.60 : x - Step 2: Convert to fraction form
8,239,268.80/12,358,903.20 = 2,561,233.60/x - Step 3: Cross multiply
8,239,268.80x = 12,358,903.20 × 2,561,233.60 - Step 4: Simplify right side
8,239,268.80x = 31,654,038,134,987.52 - Step 5: Solve for x
x = 31,654,038,134,987.52/8,239,268.80 - Step 6: Final answer
x = 3,841,850.40
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1.5x scale
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.