Finding the Fourth Proportional to 10,173,431.90, 15,260,147.85 and 8,260,244.30
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Solution
The fourth proportional to 10,173,431.90, 15,260,147.85 and 8,260,244.30 is: 12,390,366.45
Step by Step Solution
- Step 1: Write the proportion equation
10,173,431.90 : 15,260,147.85 = 8,260,244.30 : x - Step 2: Convert to fraction form
10,173,431.90/15,260,147.85 = 8,260,244.30/x - Step 3: Cross multiply
10,173,431.90x = 15,260,147.85 × 8,260,244.30 - Step 4: Simplify right side
10,173,431.90x = 126,052,549,295,119.75 - Step 5: Solve for x
x = 126,052,549,295,119.75/10,173,431.90 - Step 6: Final answer
x = 12,390,366.45
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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.