Finding the Fourth Proportional to 10,203,425.70, 15,305,138.55 and 10,203,425.70
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Solution
The fourth proportional to 10,203,425.70, 15,305,138.55 and 10,203,425.70 is: 15,305,138.55
Step by Step Solution
- Step 1: Write the proportion equation
10,203,425.70 : 15,305,138.55 = 10,203,425.70 : x - Step 2: Convert to fraction form
10,203,425.70/15,305,138.55 = 10,203,425.70/x - Step 3: Cross multiply
10,203,425.70x = 15,305,138.55 × 10,203,425.70 - Step 4: Simplify right side
10,203,425.70x = 156,164,844,023,130.72 - Step 5: Solve for x
x = 156,164,844,023,130.72/10,203,425.70 - Step 6: Final answer
x = 15,305,138.55
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Similar ratio
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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.