Finding the Fourth Proportional to 393,635,362.80, 590,453,044.20 and 189,114,121.20
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Solution
The fourth proportional to 393,635,362.80, 590,453,044.20 and 189,114,121.20 is: 283,671,181.80
Step by Step Solution
- Step 1: Write the proportion equation
393,635,362.80 : 590,453,044.20 = 189,114,121.20 : x - Step 2: Convert to fraction form
393,635,362.80/590,453,044.20 = 189,114,121.20/x - Step 3: Cross multiply
393,635,362.80x = 590,453,044.20 × 189,114,121.20 - Step 4: Simplify right side
393,635,362.80x = 111,663,008,563,747,760 - Step 5: Solve for x
x = 111,663,008,563,747,760/393,635,362.80 - Step 6: Final answer
x = 283,671,181.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.