Finding the Fourth Proportional to 217,465,280.97, 326,034,991.58 and 131,183,575.53
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Solution
The fourth proportional to 217,465,280.97, 326,034,991.58 and 131,183,575.53 is: 196,677,077.61
Step by Step Solution
- Step 1: Write the proportion equation
217,465,280.97 : 326,034,991.58 = 131,183,575.53 : x - Step 2: Convert to fraction form
217,465,280.97/326,034,991.58 = 131,183,575.53/x - Step 3: Cross multiply
217,465,280.97x = 326,034,991.58 × 131,183,575.53 - Step 4: Simplify right side
217,465,280.97x = 42,770,435,942,701,928 - Step 5: Solve for x
x = 42,770,435,942,701,928/217,465,280.97 - Step 6: Final answer
x = 196,677,077.61
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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.