Finding the Fourth Proportional to 395,418,487.62, 593,160,008.76 and 198,580,669.05
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Solution
The fourth proportional to 395,418,487.62, 593,160,008.76 and 198,580,669.05 is: 297,887,213.37
Step by Step Solution
- Step 1: Write the proportion equation
395,418,487.62 : 593,160,008.76 = 198,580,669.05 : x - Step 2: Convert to fraction form
395,418,487.62/593,160,008.76 = 198,580,669.05/x - Step 3: Cross multiply
395,418,487.62x = 593,160,008.76 × 198,580,669.05 - Step 4: Simplify right side
395,418,487.62x = 117,790,111,393,264,672 - Step 5: Solve for x
x = 117,790,111,393,264,672/395,418,487.62 - Step 6: Final answer
x = 297,887,213.37
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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.