Finding the Fourth Proportional to 7,452,090.40, 11,178,135.60 and 3,413,138.80
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Solution
The fourth proportional to 7,452,090.40, 11,178,135.60 and 3,413,138.80 is: 5,119,708.20
Step by Step Solution
- Step 1: Write the proportion equation
7,452,090.40 : 11,178,135.60 = 3,413,138.80 : x - Step 2: Convert to fraction form
7,452,090.40/11,178,135.60 = 3,413,138.80/x - Step 3: Cross multiply
7,452,090.40x = 11,178,135.60 × 3,413,138.80 - Step 4: Simplify right side
7,452,090.40x = 38,152,528,328,021.27 - Step 5: Solve for x
x = 38,152,528,328,021.27/7,452,090.40 - Step 6: Final answer
x = 5,119,708.20
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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.