Finding the Fourth Proportional to 5,160,000.40, 7,740,000.60 and 3,268,877.20
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Solution
The fourth proportional to 5,160,000.40, 7,740,000.60 and 3,268,877.20 is: 4,903,315.80
Step by Step Solution
- Step 1: Write the proportion equation
5,160,000.40 : 7,740,000.60 = 3,268,877.20 : x - Step 2: Convert to fraction form
5,160,000.40/7,740,000.60 = 3,268,877.20/x - Step 3: Cross multiply
5,160,000.40x = 7,740,000.60 × 3,268,877.20 - Step 4: Simplify right side
5,160,000.40x = 25,301,111,489,326.32 - Step 5: Solve for x
x = 25,301,111,489,326.32/5,160,000.40 - Step 6: Final answer
x = 4,903,315.80
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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.