Finding the Fourth Proportional to 18,582,486.20, 27,882,023.70 and 6,623,804.60
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Solution
The fourth proportional to 18,582,486.20, 27,882,023.70 and 6,623,804.60 is: 9,938,663.47
Step by Step Solution
- Step 1: Write the proportion equation
18,582,486.20 : 27,882,023.70 = 6,623,804.60 : x - Step 2: Convert to fraction form
18,582,486.20/27,882,023.70 = 6,623,804.60/x - Step 3: Cross multiply
18,582,486.20x = 27,882,023.70 × 6,623,804.60 - Step 4: Simplify right side
18,582,486.20x = 184,685,076,841,369 - Step 5: Solve for x
x = 184,685,076,841,369/18,582,486.20 - Step 6: Final answer
x = 9,938,663.47
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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.