Finding the Fourth Proportional to 8,256,164.40, 12,384,246.60 and 6,240,625.20
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Solution
The fourth proportional to 8,256,164.40, 12,384,246.60 and 6,240,625.20 is: 9,360,937.80
Step by Step Solution
- Step 1: Write the proportion equation
8,256,164.40 : 12,384,246.60 = 6,240,625.20 : x - Step 2: Convert to fraction form
8,256,164.40/12,384,246.60 = 6,240,625.20/x - Step 3: Cross multiply
8,256,164.40x = 12,384,246.60 × 6,240,625.20 - Step 4: Simplify right side
8,256,164.40x = 77,285,441,414,974.31 - Step 5: Solve for x
x = 77,285,441,414,974.31/8,256,164.40 - Step 6: Final answer
x = 9,360,937.80
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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.