Finding the Fourth Proportional to 38,993,101.68, 53,812,161.36 and 21,589,446.27
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Solution
The fourth proportional to 38,993,101.68, 53,812,161.36 and 21,589,446.27 is: 29,794,366.60
Step by Step Solution
- Step 1: Write the proportion equation
38,993,101.68 : 53,812,161.36 = 21,589,446.27 : x - Step 2: Convert to fraction form
38,993,101.68/53,812,161.36 = 21,589,446.27/x - Step 3: Cross multiply
38,993,101.68x = 53,812,161.36 × 21,589,446.27 - Step 4: Simplify right side
38,993,101.68x = 1,161,774,766,354,290 - Step 5: Solve for x
x = 1,161,774,766,354,290/38,993,101.68 - Step 6: Final answer
x = 29,794,366.60
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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.