Finding the Fourth Proportional to 38,993,308.53, 53,812,446.84 and 21,589,653.63
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Solution
The fourth proportional to 38,993,308.53, 53,812,446.84 and 21,589,653.63 is: 29,794,652.78
Step by Step Solution
- Step 1: Write the proportion equation
38,993,308.53 : 53,812,446.84 = 21,589,653.63 : x - Step 2: Convert to fraction form
38,993,308.53/53,812,446.84 = 21,589,653.63/x - Step 3: Cross multiply
38,993,308.53x = 53,812,446.84 × 21,589,653.63 - Step 4: Simplify right side
38,993,308.53x = 1,161,792,088,258,388 - Step 5: Solve for x
x = 1,161,792,088,258,388/38,993,308.53 - Step 6: Final answer
x = 29,794,652.78
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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.