Finding the Fourth Proportional to 31,872,757.80, 47,809,136.70 and 25,495,465.80
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Solution
The fourth proportional to 31,872,757.80, 47,809,136.70 and 25,495,465.80 is: 38,243,198.70
Step by Step Solution
- Step 1: Write the proportion equation
31,872,757.80 : 47,809,136.70 = 25,495,465.80 : x - Step 2: Convert to fraction form
31,872,757.80/47,809,136.70 = 25,495,465.80/x - Step 3: Cross multiply
31,872,757.80x = 47,809,136.70 × 25,495,465.80 - Step 4: Simplify right side
31,872,757.80x = 1,218,916,209,662,375 - Step 5: Solve for x
x = 1,218,916,209,662,375/31,872,757.80 - Step 6: Final answer
x = 38,243,198.70
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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.