Finding the Fourth Proportional to 287,577,193.80, 431,365,790.70 and 287,577,193.80
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Solution
The fourth proportional to 287,577,193.80, 431,365,790.70 and 287,577,193.80 is: 431,365,790.70
Step by Step Solution
- Step 1: Write the proportion equation
287,577,193.80 : 431,365,790.70 = 287,577,193.80 : x - Step 2: Convert to fraction form
287,577,193.80/431,365,790.70 = 287,577,193.80/x - Step 3: Cross multiply
287,577,193.80x = 431,365,790.70 × 287,577,193.80 - Step 4: Simplify right side
287,577,193.80x = 124,050,963,590,824,144 - Step 5: Solve for x
x = 124,050,963,590,824,144/287,577,193.80 - Step 6: Final answer
x = 431,365,790.70
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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.