Finding the Fourth Proportional to 11,478,115.53, 15,840,515.23 and 6,321,475.71
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Solution
The fourth proportional to 11,478,115.53, 15,840,515.23 and 6,321,475.71 is: 8,724,030.70
Step by Step Solution
- Step 1: Write the proportion equation
11,478,115.53 : 15,840,515.23 = 6,321,475.71 : x - Step 2: Convert to fraction form
11,478,115.53/15,840,515.23 = 6,321,475.71/x - Step 3: Cross multiply
11,478,115.53x = 15,840,515.23 × 6,321,475.71 - Step 4: Simplify right side
11,478,115.53x = 100,135,432,236,532.45 - Step 5: Solve for x
x = 100,135,432,236,532.45/11,478,115.53 - Step 6: Final answer
x = 8,724,030.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.