Finding the Fourth Proportional to 18,432,840.60, 27,649,260.90 and 5,653,243.80
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Solution
The fourth proportional to 18,432,840.60, 27,649,260.90 and 5,653,243.80 is: 8,479,865.70
Step by Step Solution
- Step 1: Write the proportion equation
18,432,840.60 : 27,649,260.90 = 5,653,243.80 : x - Step 2: Convert to fraction form
18,432,840.60/27,649,260.90 = 5,653,243.80/x - Step 3: Cross multiply
18,432,840.60x = 27,649,260.90 × 5,653,243.80 - Step 4: Simplify right side
18,432,840.60x = 156,308,012,757,507.41 - Step 5: Solve for x
x = 156,308,012,757,507.41/18,432,840.60 - Step 6: Final answer
x = 8,479,865.70
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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.