Finding the Fourth Proportional to 12,915,138.02, 19,372,731.60 and 12,125,948.12
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Solution
The fourth proportional to 12,915,138.02, 19,372,731.60 and 12,125,948.12 is: 18,188,945.25
Step by Step Solution
- Step 1: Write the proportion equation
12,915,138.02 : 19,372,731.60 = 12,125,948.12 : x - Step 2: Convert to fraction form
12,915,138.02/19,372,731.60 = 12,125,948.12/x - Step 3: Cross multiply
12,915,138.02x = 19,372,731.60 × 12,125,948.12 - Step 4: Simplify right side
12,915,138.02x = 234,912,738,324,284.59 - Step 5: Solve for x
x = 234,912,738,324,284.59/12,915,138.02 - Step 6: Final answer
x = 18,188,945.25
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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.