Finding the Fourth Proportional to 22,157,537.60, 30,582,503.68 and 12,993,132.80
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Solution
The fourth proportional to 22,157,537.60, 30,582,503.68 and 12,993,132.80 is: 17,933,514.94
Step by Step Solution
- Step 1: Write the proportion equation
22,157,537.60 : 30,582,503.68 = 12,993,132.80 : x - Step 2: Convert to fraction form
22,157,537.60/30,582,503.68 = 12,993,132.80/x - Step 3: Cross multiply
22,157,537.60x = 30,582,503.68 × 12,993,132.80 - Step 4: Simplify right side
22,157,537.60x = 397,362,531,670,728.75 - Step 5: Solve for x
x = 397,362,531,670,728.75/22,157,537.60 - Step 6: Final answer
x = 17,933,514.94
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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.