Finding the Fourth Proportional to 8,271,515.70, 12,407,273.55 and 6,358,328.10
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Solution
The fourth proportional to 8,271,515.70, 12,407,273.55 and 6,358,328.10 is: 9,537,492.15
Step by Step Solution
- Step 1: Write the proportion equation
8,271,515.70 : 12,407,273.55 = 6,358,328.10 : x - Step 2: Convert to fraction form
8,271,515.70/12,407,273.55 = 6,358,328.10/x - Step 3: Cross multiply
8,271,515.70x = 12,407,273.55 × 6,358,328.10 - Step 4: Simplify right side
8,271,515.70x = 78,889,516,057,351.75 - Step 5: Solve for x
x = 78,889,516,057,351.75/8,271,515.70 - Step 6: Final answer
x = 9,537,492.15
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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.