Finding the Fourth Proportional to 354,694,803.55, 489,493,699.36 and 203,987,576.99
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Solution
The fourth proportional to 354,694,803.55, 489,493,699.36 and 203,987,576.99 is: 281,511,408.35
Step by Step Solution
- Step 1: Write the proportion equation
354,694,803.55 : 489,493,699.36 = 203,987,576.99 : x - Step 2: Convert to fraction form
354,694,803.55/489,493,699.36 = 203,987,576.99/x - Step 3: Cross multiply
354,694,803.55x = 489,493,699.36 × 203,987,576.99 - Step 4: Simplify right side
354,694,803.55x = 99,850,633,681,360,480 - Step 5: Solve for x
x = 99,850,633,681,360,480/354,694,803.55 - Step 6: Final answer
x = 281,511,408.35
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.