Finding the Fourth Proportional to 38,641,725.44, 53,372,349.60 and 28,171,160
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Solution
The fourth proportional to 38,641,725.44, 53,372,349.60 and 28,171,160 is: 38,910,296.66
Step by Step Solution
- Step 1: Write the proportion equation
38,641,725.44 : 53,372,349.60 = 28,171,160 : x - Step 2: Convert to fraction form
38,641,725.44/53,372,349.60 = 28,171,160/x - Step 3: Cross multiply
38,641,725.44x = 53,372,349.60 × 28,171,160 - Step 4: Simplify right side
38,641,725.44x = 1,503,561,000,157,536 - Step 5: Solve for x
x = 1,503,561,000,157,536/38,641,725.44 - Step 6: Final answer
x = 38,910,296.66
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1.5x scale
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.