Finding the Fourth Proportional to 8,188,454.08, 12,257,486.88 and 5,342,438.08
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Solution
The fourth proportional to 8,188,454.08, 12,257,486.88 and 5,342,438.08 is: 7,997,219.50
Step by Step Solution
- Step 1: Write the proportion equation
8,188,454.08 : 12,257,486.88 = 5,342,438.08 : x - Step 2: Convert to fraction form
8,188,454.08/12,257,486.88 = 5,342,438.08/x - Step 3: Cross multiply
8,188,454.08x = 12,257,486.88 × 5,342,438.08 - Step 4: Simplify right side
8,188,454.08x = 65,484,864,672,812.40 - Step 5: Solve for x
x = 65,484,864,672,812.40/8,188,454.08 - Step 6: Final answer
x = 7,997,219.50
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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.